Fixed some gcc4 warnings (oops ^^)

git-svn-id: https://svn.code.sf.net/p/rathena/svn/trunk@8809 54d463be-8e91-2dee-dedb-b68131a5f0ec

src/common/core.c

@@ -233,7 +233,9 @@ int main (int argc, char **argv)
 			SERVER_NAME = ++p;
 		arg_c = argc;
 		arg_v = argv;
-		*eA_svn_version = '\0';
+		#ifndef SVNVERSION
+			*eA_svn_version = '\0';
+		#endif
 	}
 
 	set_server_type();