Bug 1161640 - |mar_read_entire_file| can leak file descriptor (command line build utility). Close descriptor when fseeko fails. r=rstrong

modules/libmar/verify/mar_verify.c

@@ -51,9 +51,10 @@ mar_read_entire_file(const char * filePath, uint32_t maxSize,
         }
       }
     }
-    fclose(f);
   }
 
+  fclose(f);
+
   return result;
 }