ref: 4fec34471f0587c0eaa62e0cc580b7bfc6457f61 dir: /libc/runestrcat.c/
#include <u.h> #include <libc.h> Rune* runestrcat(Rune *s1, Rune *s2) { runestrcpy(runestrchr(s1, 0), s2); return s1; }