bugfix: DEBUG_CMP: fixed warning: format string is not a string literal (potentially insecure)

Author: ZoltanBojthe

src/inet/common/DebugDefs.h

@@ -155,7 +155,7 @@ static inline bool _dbg_function_enabled(const char *function)
         _dbg_global_enabled = true; _o1 = (o1); _o2 = (o2); \
         std::ostringstream oss; oss << "ASSERT: Condition '" << #o1 << " " << #cmp << " " << #o2 << "' as '" << _o1 << " " << #cmp << " " << _o2 << "' does not hold"; \
         omnetpp::cRuntimeError error("in function '%s()' at %s:%d", __FUNCTION__, __FILE__, __LINE__); \
-        error.prependMessage(oss.str().c_str()); \
+        error.prependMessage("%s", oss.str().c_str()); \
         throw error; \
     } \
 }