Fix misc whitespace

Command used to check for whitespace errors:

    $ git diff --check 0.9.78..

etc/apparmor/usr.lib.firejail.fnettrace-icmp

@@ -12,4 +12,3 @@ include <tunables/global>
   network packet,
   network raw,
 }
-

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
-
-

mkgcov.sh

@@ -43,10 +43,3 @@ if test -f src/firejail/main.gcno; then
 	  src/fzenity \
 	  src/lib
 fi
-
-
-
-
-
-
-

src/fnettrace/runprog.c

@@ -69,4 +69,3 @@ void killprogs(void) {
 		p = p->next;
 	}
 }
-		

test/fcopy/fcopy.sh

@@ -33,5 +33,3 @@ rm -f src/dircopy.exp
 
 cd ../..
 ./mkgcov.sh
-
-

test/fnettrace/fnettrace-check-root.exp

@@ -43,4 +43,3 @@ expect {
 
 after 100
 puts "\nexpect script done\r"
-

test/fnettrace/fnettrace-dns.exp

@@ -24,4 +24,3 @@ expect {
 
 after 100
 puts "\nexpect script done\r"
-

test/fnettrace/fnettrace-icmp.exp

@@ -20,4 +20,3 @@ expect {
 
 after 100
 puts "\nexpect script done\r"
-

test/fnettrace/fnettrace-sni.exp

@@ -20,4 +20,3 @@ expect {
 
 after 100
 puts "\nexpect script done\r"
-

test/fnettrace/nettrace.exp

@@ -20,4 +20,3 @@ expect {
 
 sleep 1
 puts "\nexpect script done\r"
-

test/utils/firemon-events.exp

@@ -22,7 +22,5 @@ expect {
 	-re "EXIT SANDBOX"
 }
 
-
 sleep 1
 puts "\nall done\r"
-

test/utils/jailcheck.exp

@@ -32,4 +32,3 @@ expect {
 sleep 1
 
 puts "\nall done\r"
-