diff --git a/etc/apparmor/usr.lib.firejail.fnettrace b/etc/apparmor/usr.lib.firejail.fnettrace
index ecce244ff..2a7bf764e 100644
--- a/etc/apparmor/usr.lib.firejail.fnettrace
+++ b/etc/apparmor/usr.lib.firejail.fnettrace
@@ -18,7 +18,7 @@
   deny /tmp/.X[0-9]*-lock mrwkl,
   deny /tmp/systemd* mrwkl,
   deny /tmp/ssh* mrwkl,
-  
+
   deny /etc/ssh/{,**} mrwkl,
   deny /etc/ssl/{,**} mrwkl,
   deny /etc/ca-certificates/{,**} mrwkl,
diff --git a/etc/apparmor/usr.lib.firejail.fnettrace-icmp b/etc/apparmor/usr.lib.firejail.fnettrace-icmp
index 4a85f114b..a6f1dd811 100644
--- a/etc/apparmor/usr.lib.firejail.fnettrace-icmp
+++ b/etc/apparmor/usr.lib.firejail.fnettrace-icmp
@@ -12,4 +12,3 @@ include <tunables/global>
   network packet,
   network raw,
 }
-
diff --git a/gcov.sh b/gcov.sh
index 6129f4468..8ce3415eb 100755
--- a/gcov.sh
+++ b/gcov.sh
@@ -24,7 +24,6 @@ gcov_generate() {
 /usr/bin/jailcheck --help
 sleep 2
 
-
 # --help -secondary programs
 /usr/lib/firejail/etc-cleanup --help
 /usr/lib/firejail/fbuilder --help
@@ -78,5 +77,3 @@ make test-private-etc
 gcov_generate
 make test-seccomp-extra
 gcov_generate
-
-
diff --git a/mkgcov.sh b/mkgcov.sh
index 48608e0b9..ea54763d3 100755
--- a/mkgcov.sh
+++ b/mkgcov.sh
@@ -43,10 +43,3 @@ if test -f src/firejail/main.gcno; then
 	  src/fzenity \
 	  src/lib
 fi
-
-
-
-
-
-
-
diff --git a/src/firejail/fs.c b/src/firejail/fs.c
index 1abc9e2a7..31776bc1a 100644
--- a/src/firejail/fs.c
+++ b/src/firejail/fs.c
@@ -169,7 +169,7 @@ static int disable_file(OPERATION op, const char *filename) {
 				fwarning("cannot blacklist %s, mount failed\n", fname);
 				retval = 1;
 			}
-			
+
 			// files in /etc will be reprocessed during /etc rebuild
 			if (strncmp(fname, "/etc/", 5) == 0) {
 				ProfileEntry *prf = malloc(sizeof(ProfileEntry));
@@ -831,7 +831,7 @@ void fs_proc_sys_dev_boot(void) {
 	}
 	else
 		fwarning("cannot hide pid 1 inside the sandbox\n");
-	
+
 	// remove kernel symbol information
 	if (!arg_allow_debuggers) {
 		disable_file(BLACKLIST_FILE, "/usr/src/linux");
diff --git a/src/firejail/fs_hostname.c b/src/firejail/fs_hostname.c
index 172f01039..5adacb58b 100644
--- a/src/firejail/fs_hostname.c
+++ b/src/firejail/fs_hostname.c
@@ -27,7 +27,7 @@
 // build a random host name
 static char *random_hostname(void) {
 	assert(!arg_keep_hostname);
-	
+
 	char vowels[] = { 'a', 'e', 'i', 'o', 'u'};
 	char consonants[] = {'b', 'c', 'c', 'c', 'g', 'h', 'h', 'h', 'h', 'h',
 		'j', 'j', 'k', 'k', 'k', 'k', 'k', 'k', 'k', 'k', 'k', 'k', 'm', 'm', 'm', 'm', 'n', 'n', 'n', 'n', 'n',
diff --git a/src/firejail/sandbox.c b/src/firejail/sandbox.c
index f10a764a6..71d834bf3 100644
--- a/src/firejail/sandbox.c
+++ b/src/firejail/sandbox.c
@@ -983,12 +983,12 @@ int sandbox(void* sandbox_arg) {
 	if (!arg_keep_hostname) {
 		fs_hostname();
 		// /usr/bin/hostname is blacklisted in default.profile
-		// test this using cat /proc/sys/kernel/hostname, 
+		// test this using cat /proc/sys/kernel/hostname,
 		assert(cfg.hostname);
 		if (sethostname(cfg.hostname, strlen(cfg.hostname)) < 0)
 			errExit("sethostname");
 	}
-	
+
 	//****************************
 	// /etc overrides from the network namespace
 	//****************************
diff --git a/src/fnettrace/main.c b/src/fnettrace/main.c
index ae6239d8c..9cc4c9fc1 100644
--- a/src/fnettrace/main.c
+++ b/src/fnettrace/main.c
@@ -629,7 +629,7 @@ static void run_trace(void) {
 					continue;
 				}
 				*ptr = '\0';
-			
+
 				if (strstr(buf, "/../") ||
 				    strstr(buf, "/./") ||
 				    strstr(buf, "//") ||
@@ -653,7 +653,7 @@ static void run_trace(void) {
 					sleep(4);
 					continue;
 				}
-			
+
 				printf("Saving stats in %s file...\n", buf);
 				print_stats(fp);
 				fclose(fp);
diff --git a/src/fnettrace/runprog.c b/src/fnettrace/runprog.c
index 8e41cb28c..54f67b45a 100644
--- a/src/fnettrace/runprog.c
+++ b/src/fnettrace/runprog.c
@@ -69,4 +69,3 @@ void killprogs(void) {
 		p = p->next;
 	}
 }
-		
diff --git a/test/fcopy/fcopy.sh b/test/fcopy/fcopy.sh
index 127054767..ec07016ea 100755
--- a/test/fcopy/fcopy.sh
+++ b/test/fcopy/fcopy.sh
@@ -33,5 +33,3 @@ rm -f src/dircopy.exp
 
 cd ../..
 ./mkgcov.sh
-
-
diff --git a/test/fnettrace/fnettrace-check-root.exp b/test/fnettrace/fnettrace-check-root.exp
index 3612dd405..cf6995d70 100755
--- a/test/fnettrace/fnettrace-check-root.exp
+++ b/test/fnettrace/fnettrace-check-root.exp
@@ -43,4 +43,3 @@ expect {
 
 after 100
 puts "\nexpect script done\r"
-
diff --git a/test/fnettrace/fnettrace-dns.exp b/test/fnettrace/fnettrace-dns.exp
index f489787d7..e88deb796 100755
--- a/test/fnettrace/fnettrace-dns.exp
+++ b/test/fnettrace/fnettrace-dns.exp
@@ -24,4 +24,3 @@ expect {
 
 after 100
 puts "\nexpect script done\r"
-
diff --git a/test/fnettrace/fnettrace-icmp.exp b/test/fnettrace/fnettrace-icmp.exp
index 01cb64cc3..6de29537a 100755
--- a/test/fnettrace/fnettrace-icmp.exp
+++ b/test/fnettrace/fnettrace-icmp.exp
@@ -20,4 +20,3 @@ expect {
 
 after 100
 puts "\nexpect script done\r"
-
diff --git a/test/fnettrace/fnettrace-sni.exp b/test/fnettrace/fnettrace-sni.exp
index 1a7061efb..876fd0f01 100755
--- a/test/fnettrace/fnettrace-sni.exp
+++ b/test/fnettrace/fnettrace-sni.exp
@@ -20,4 +20,3 @@ expect {
 
 after 100
 puts "\nexpect script done\r"
-
diff --git a/test/fnettrace/nettrace.exp b/test/fnettrace/nettrace.exp
index 2be97d549..9b304174a 100755
--- a/test/fnettrace/nettrace.exp
+++ b/test/fnettrace/nettrace.exp
@@ -20,4 +20,3 @@ expect {
 
 sleep 1
 puts "\nexpect script done\r"
-
diff --git a/test/utils/firemon-events.exp b/test/utils/firemon-events.exp
index 3f697b065..4fc36850d 100755
--- a/test/utils/firemon-events.exp
+++ b/test/utils/firemon-events.exp
@@ -22,7 +22,5 @@ expect {
 	-re "EXIT SANDBOX"
 }
 
-
 sleep 1
 puts "\nall done\r"
-
diff --git a/test/utils/jailcheck.exp b/test/utils/jailcheck.exp
index 35ce9d82f..946feb893 100755
--- a/test/utils/jailcheck.exp
+++ b/test/utils/jailcheck.exp
@@ -32,4 +32,3 @@ expect {
 sleep 1
 
 puts "\nall done\r"
-