Better setlocale error

Author: WillAyd

pandas/_libs/src/ujson/lib/ultrajsondec.c

@@ -1175,7 +1175,7 @@ JSOBJ JSON_DecodeObject(JSONObjectDecoder *dec, const char *buffer,
 
     locale = setlocale(LC_NUMERIC, NULL);
     if (!locale) {
-        return SetError(&ds, -1, "Could not reserve memory block");
+        return SetError(&ds, -1, "setlocale call failed");
     }
 
     if (strcmp(locale, "C")) {

pandas/_libs/src/ujson/lib/ultrajsonenc.c

@@ -1177,7 +1177,7 @@ char *JSON_EncodeObject(JSOBJ obj, JSONObjectEncoder *enc, char *_buffer,
 
     locale = setlocale(LC_NUMERIC, NULL);
     if (!locale) {
-        SetError(NULL, enc, "Could not reserve memory block");
+        SetError(NULL, enc, "setlocale call failed");
         return NULL;
     }