fix quoting in makeabs()

'local' is treated as a command, so its arguments need to be quoted,
unlike in a real variable assignment.

amends 4b557751e.

Change-Id: I5a4c929e52e2344a6129c8e9dd4c0c80cd408ff0
Reviewed-by: Joerg Bornemann <joerg.bornemann@theqtcompany.com>

configure

@@ -126,8 +126,8 @@ shellQuoteLines()
 
 makeabs()
 {
-    local FILE=$1
-    local RES=$FILE
+    local FILE="$1"
+    local RES="$FILE"
     if [ -z "${FILE##/*}" ]; then
         true
     elif [ "$OSTYPE" = "msys" -a -z "${FILE##[a-zA-Z]:[/\\]*}" ]; then