fix equality check on a return code within g-apply-patch

Author: bdoll

g-apply-patch

@@ -9,7 +9,7 @@ then
 	FEATURE_NAME=`basename -s .patch $1`
 	g-branch "${FEATURE_NAME}"
 	git am < "$1"
-	if [ $? eq 0 ]
+	if [ $? -eq 0 ]
 		then
 		rm "$1"
 		echo "The patch file has been applied successfully and removed."