[PATCH] Fix full pathname condition in find_library

["Sergey Fionov" <fionov@xxxxxxxxx>]

Hello,

Now a fact that the path is full is checked by
[[ -x $1 ]]

But if the working directory is /bin or a directory with a file named  
"mount",
this condition will be met for "inst mount", and "mount" will not be copied
into initrd at all.

diff --git a/dracut-functions b/dracut-functions
index d4caacf..1078bfd 100755
--- a/dracut-functions
+++ b/dracut-functions
@@ -83,7 +83,7 @@ inst_library() {
 # search in the usual places to find the binary.
 find_binary() {
     local binpath="/bin /sbin /usr/bin /usr/sbin" p
-    [[ -x $1 ]] && { echo $1; return 0; }
+    [[ -z ${1##/*} && -x $1 ]] && { echo $1; return 0; }
     for p in $binpath; do
        [[ -x $p/$1 ]] && { echo "$p/$1"; return 0; }
     done
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