userspace/tools: init libwr messages in wrs_checkcfg

In case there are errors it will print process name instead of pid.
for example:
/wr/bin/wrs_checkcfg: Error: Configuration "XXX" not found
instead of:
<pid-123>: Error: Configuration "PORT00_PARAMS" not found

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

userspace/tools/wrs_checkcfg.c

@@ -6,11 +6,14 @@
 #include <string.h>
 #include <errno.h>
 #include <libwr/config.h>
+#include <libwr/wrs-msg.h>
 
 int main(int argc, char **argv)
 {
 	int err, verbose = 0;
 
+	wrs_msg_init(1, argv);
+
 me_lazy:
 	if (argc < 2 || !strcmp(argv[1], "-h") || !strcmp(argv[1], "--help")) {
 		fprintf(stderr, "%s: Use: \"%s [-v] <dotcfg> [<Kconfig>]\"\n",