add %m support to wide printf

diff --git a/src/stdio/vfwprintf.c b/src/stdio/vfwprintf.c
index ebdff00..281f4e5 100644 (file)
--- a/src/stdio/vfwprintf.c
+++ b/src/stdio/vfwprintf.c
@@ -293,6 +293,8 @@ static int wprintf_core(FILE *f, const wchar_t *fmt, va_list *ap, union arg *nl_
                        if ((fl&LEFT_ADJ)) fprintf(f, "%.*s", w-p, "");
                        l=w;
                        continue;
+               case 'm':
+                       arg.p = strerror(errno);
                case 's':
                        bs = arg.p;
                        if (p<0) p = INT_MAX;