buildme: avoid shell expansion of tr expression

Quote the tr expression to prevent the shell expanding it if
there happens to be a file called [a-z] or [A-Z], for example, a
file called "a".

diff --git a/buildme b/buildme
index 9e9d4d7a30a3ad832978440e919492f1b823225b..d7782761575751f3593cf888a6905979e53e4700 100755 (executable)
--- a/buildme
+++ b/buildme
@@ -6,7 +6,7 @@ BUILDTYPE=Debug
 shift
 fi
 
-BUILDSUBDIR=`echo $BUILDTYPE | tr [A-Z] [a-z]`;
+BUILDSUBDIR=`echo $BUILDTYPE | tr '[A-Z]' '[a-z]'`;
 
 if [ "armv6l" = `arch` ] || [ "armv7l" = `arch` ]; then
        # Native compile on the Raspberry Pi