ref: e1964307f2d3ca6cd9e31ed3299c2ab42bfb7a4e dir: /libc/runestrcat.c/
#include <u.h> #include <libc.h> Rune* runestrcat(Rune *s1, Rune *s2) { runestrcpy(runestrchr(s1, 0), s2); return s1; }