adafruit#56 remove added NL & fix docblock

Author: matt-land

adafruit_imageload/gif.py

@@ -38,19 +38,17 @@ def load(
 
     Returns tuple of bitmap object and palette object.
 
-    :param FileIO file: The *.gif file being loaded
+    :param BufferedReader file: The *.gif file being loaded
     :param object bitmap: Type to store bitmap data. Must have API similar to `displayio.Bitmap`.
       Will be skipped if None
     :param object palette: Type to store the palette. Must have API similar to
       `displayio.Palette`. Will be skipped if None"""
     header = file.read(6)
     if header not in {b"GIF87a", b"GIF89a"}:
         raise ValueError("Not a GIF file")
-
     width, height, flags, _, _ = struct.unpack(  # pylint: disable=no-member
         "<HHBBB", file.read(7)
     )
-
     if (flags & 0x80) != 0:
         palette_size = 1 << ((flags & 0x07) + 1)
         palette_obj = palette(palette_size)