Fix wrong path checked

We should check whether the file being captured actually exists.

Change-Id: I12ae91ac84fdd6ff1eee195b88e257819379ce79
(cherry picked from commit 71e569881e)
(cherry picked from commit 8cbb3180e8)

copy_logs.sh

@@ -225,7 +225,7 @@ if uses_debs ; then
     done
 elif is_fedora; then
     for f in ovn-northd ovn-controller ; do
-        if [ -f /etc/sysconfig/ovn-northd ]; then
+        if [ -f /etc/sysconfig/$f ]; then
             mkdir -p $LOG_DIR/etc/sysconfig
             sudo cp /etc/sysconfig/$f $LOG_DIR/etc/sysconfig/
         fi