Drop extraneous escaping in the basename call

Author: martin-frbg

c_check

@@ -35,7 +35,7 @@ if [ "`dirname \"$compiler_name\"`" != '.' ]; then
     cross_suffix="$cross_suffix`dirname \"$compiler_name\"`/"
 fi
 
-bn=`basename \"$compiler_name\"`
+bn=`basename "$compiler_name"`
 
 case "$bn" in
     *-*) if [ "$bn" != '-' ]; then