* an (optional) image block and an arbitrary number
* of image extension blocks, produce an output GIF with
* only one image block that contains the last image
- * (extenstion) block of the original.
- * Also strip Comments, Application extenstions, etc.
+ * (extension) block of the original.
+ * Also strip Comments, Application extensions, etc.
*
* Parameters :
* 1 : src = Pointer to the source binbuffer