Do not translate close button symbol

android-extract-strings.sh

@@ -1,7 +1,11 @@
 #!/bin/sh
 
 mkdir -p ../translations/lang
-git diff 1.6/master -- src/lang/english.txt | tail -n +5 | grep '^+' | cut -b 2- > ../translations/lang/english.txt
+git diff 1.6/master -- src/lang/english.txt | tail -n +5 | grep '^+' | cut -b 2- | \
+grep -v "^STR_TABLET_CLOSE\b" | \
+grep -v "^STR_TABLET_SHIFT\b" | \
+grep -v "^STR_TABLET_CTRL\b" | \
+cat > ../translations/lang/english.txt
 
 for f in src/lang/*.txt; do
 	[ "$f" = src/lang/english.txt ] && continue