broker: initialize locale

Problem: The broker does not initialize the current locale
from the environment, so it may default to an ASCII-only locale
(e.g. ANSI_X3.4-1968).

Call

  setlocale (LC_ALL, "");

first thing in main() to ensure the locale is properly initialized
from the current environment.

Author: grondo

src/broker/broker.c

@@ -13,6 +13,7 @@
 #endif
 #include <assert.h>
 #include <libgen.h>
+#include <locale.h>
 #include <inttypes.h>
 #include <sys/prctl.h>
 #include <sys/resource.h>
@@ -204,6 +205,8 @@ int main (int argc, char *argv[])
     const char *method;
     flux_error_t error;
 
+    setlocale (LC_ALL, "");
+
     memset (&ctx, 0, sizeof (ctx));
     log_init (argv[0]);