execltp: Strip newlines from fd.readlines()

Othewise the paths to the runtest files ends up with newline which
causes the script fail with ENOENT when attempting to open the files.

Reported-by: Daniel Sangorrin <daniel.sangorrin@toshiba.co.jp>
Signed-off-by: Cyril Hrubis <chrubis@suse.cz>
Tested-by: Daniel Sangorrin <daniel.sangorrin@toshiba.co.jp>
diff --git a/execltp.in b/execltp.in
index 6d13ad1..10b1f53 100755
--- a/execltp.in
+++ b/execltp.in
@@ -309,7 +309,7 @@
         # Default to scenarios also used by runltp.
         fd = open(os.path.join(ltpdir, 'scenario_groups/default'), 'r')
         try:
-            args = fd.readlines()
+            args = [l.strip() for l in fd.readlines()]
         finally:
             fd.close()