add extra assertion for name_len in arenaCopyCStr

src/util.h

@@ -138,7 +138,7 @@ char*
 arenaCopyCStr(MemoryArena* arena, const char* input, u32 max_len)
 {
 	u32 name_len = std::strlen(input) + 1;
-	assert(name_len < max_len);
+	assert(name_len > 1 && name_len < max_len);
 	char* out = ARENA_ALLOC(arena, char, name_len);
 	std::strncpy(out, input, name_len);
 	return out;