Change comment style

Co-authored-by: Andrew Murray <3112309+radarhere@users.noreply.github.com>

src/libImaging/GifEncode.c

@@ -116,8 +116,8 @@ glzwe(
                     st->head = st->codes[st->probe] >> 20;
                     goto encode_loop;
                 } else {
-                    /* Reprobe decrement must be non-zero and relatively prime to table
-                     * size. So, any odd positive number for power-of-2 size. */
+                    // Reprobe decrement must be non-zero and relatively prime to table
+                    // size. So, any odd positive number for power-of-2 size.
                     if ((st->probe -= ((st->tail << 2) | 1)) < 0) {
                         st->probe += TABLE_SIZE;
                     }

src/libImaging/TiffDecode.c

@@ -414,8 +414,7 @@ _decodeTile(
     if (tile_bytes_size > ((tile_length * state->bits / planes + 7) / 8) * tile_width) {
         // If the tile size as expected by LibTiff isn't what we're expecting, abort.
         // man:   TIFFTileSize returns the equivalent size for a tile of data as it
-        // would be returned in a
-        //        call to TIFFReadTile ...
+        // would be returned in a call to TIFFReadTile ...
         state->errcode = IMAGING_CODEC_BROKEN;
         return -1;
     }
@@ -507,8 +506,7 @@ _decodeStrip(
     if (strip_size > (unpacker_row_byte_size * rows_per_strip)) {
         // If the strip size as expected by LibTiff isn't what we're expecting, abort.
         // man:   TIFFStripSize returns the equivalent size for a strip of data as it
-        // would be returned in a
-        //        call to TIFFReadEncodedStrip ...
+        // would be returned in a call to TIFFReadEncodedStrip ...
         state->errcode = IMAGING_CODEC_BROKEN;
         return -1;
     }