am 49fbec6d: HACK: remove %m support from printf.

* commit '49fbec6d9aee62462a4acf3ba47788ca1e35be37':
  HACK: remove %m support from printf.

libc/bionic/libc_logging.cpp

@@ -230,7 +230,9 @@ static void SendRepeat(Out& o, char ch, int count) {
 /* Perform formatted output to an output target 'o' */
 template <typename Out>
 static void out_vformat(Out& o, const char* format, va_list args) {
+#if 0
     int caller_errno = errno;
+#endif
     int nn = 0;
 
     for (;;) {
@@ -379,9 +381,11 @@ static void out_vformat(Out& o, const char* format, va_list args) {
         } else if (c == '%') {
             buffer[0] = '%';
             buffer[1] = '\0';
+#if 0
         } else if (c == 'm') {
             // syslog-like %m for strerror(errno).
             str = strerror(caller_errno);
+#endif
         } else {
             __assert(__FILE__, __LINE__, "conversion specifier unsupported");
         }