/* TrimSuffixC deletes c from the end of non-NULL string s if it's
* present, shortening s by 1. Only one instance of c is removed. */
void TrimSuffixC(char *s, int c)
/* TrimSuffixC deletes c from the end of non-NULL string s if it's
* present, shortening s by 1. Only one instance of c is removed. */
void TrimSuffixC(char *s, int c)