[PATCH] allow keymaps to be validated

[Saleem Abdulrasool]

only check if the map'ed value is valid if there is a value.  This prevented
30-keymap-module-sony-laptop.fdi from being validated.
---
 tools/keymap-check.sh |    8 +++++---
 1 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/tools/keymap-check.sh b/tools/keymap-check.sh
index a05e029..0978d36 100755
--- a/tools/keymap-check.sh
+++ b/tools/keymap-check.sh
@@ -20,9 +20,11 @@ get_line ()
 	cat "$1" | sed -ne '/<!--/ { :c; /-->/! { N; b c; }; /-->/s/<!--.*-->//g }; /^  *$/!p;' | grep "input.keymap.data" | while read line
 	do
 		data=`echo "${line}" | cut -d":" -f2 | cut -d"<" -f1`
-		found=`isin $data`
-		if [ "$found" = "0" ]; then
-			echo "$data "
+		if [ -n "${data}" ] ; then
+			found=`isin $data`
+			if [ "$found" = "0" ]; then
+				echo "$data "
+			fi
 		fi
 	done
 }
-- 
1.6.0.2