Use puts() rather tha uifc.msg() if uifc hasn't been initialized.

When importing an area list using the -import=<filename> option, if any
error occurred, scfg would segfault while trying to display the error
message because it was trying to use uifc.msg() which was a NULL pointer.

src/sbbs3/scfg/scfg.c

@@ -2188,7 +2188,10 @@ int lprintf(int level, char *fmt, ...)
 	sbuf[sizeof(sbuf)-1]=0;
     va_end(argptr);
     strip_ctrl(sbuf,sbuf);
-    uifc.msg(sbuf);
+	if(uifc.msg == NULL)
+		puts(sbuf);
+	else
+    	uifc.msg(sbuf);
     return(0);
 }