Fix missing initialization on rules-check utility

tools/Makefile.am

@@ -0,0 +1,14 @@
+
+ACLOCAL_AMFLAGS = -I build
+
+
+SUBDIRS = \
+	rules-check
+
+# make clean
+CLEANFILES = 
+
+# make maintainer-clean
+MAINTAINERCLEANFILES = \
+	Makefile.in
+

tools/rules-check/rules-check.cc

@@ -46,7 +46,7 @@ int main(int argc, char **argv) {
 
     while (*args != NULL) {
         struct stat buffer;
-        std::string argFull;
+        std::string argFull("");
         const char *arg = *args;
         std::string err;
         int r;