strzap(3)
remove pattern from beginning of string, if it is there
SYNOPSIS
#include <publib.h>
int strzap(char *str, const char *pat);
DESCRIPTION
strzap compares the beginning of str with all of pat,
and if they are the same, it removes the beginning from str.
RETURN VALUE
strzap returns non-zero if it removed anything, 0 if not.