Setup the assembler to use the new file reading code.

src/futil.c

@@ -5,16 +5,15 @@
 int ReadAllString(const char* path, char** content_ptr, size_t* bytes_read) {
     if (!path || !content_ptr || !bytes_read) return 0;
 
-    FILE *file;
-    file = fopen(path, "rb");
+    FILE *file = fopen(path, "rb");
 
     if (!file) {
         fprintf(stderr, "Failed to open '%s'. %s.\n", path, strerror(errno));
         return 0;
     }
 
-    char *content = NULL, *temp;
-    size_t used, capacity, read;
+    char *content = NULL, *temp = NULL;
+    size_t used = 0, capacity = 0, read = 0;
 
     while(1) {
         if (used + FUTIL_READ_SIZE + 1 > capacity) {