We don't ever call group_ensure() with a non-null group, and
libmeanwhile takes steps to ensure a group never has a NULL name,
so this can't happen. But this makes clang happier.
#!/bin/sh
if[$#-eq0];then
echo"Usage: `basename "$0"` PurpleFoo..."
echo
echo"This script searches the *current working directory* and replaces casts"
echo"with GObject-style type checking and casting macros."
echo'For example, "(PurpleBuddy *)b" becomes "PURPLE_BUDDY(b)".'