[blogger] Fix lh*.googleusercontent.com forward slash bug, add suppor…

…t for lh*-**.googleusercontent.com

Some URLs use "lh(number)-(locale).googleusercontent.com" format, so I added support for those.

Also, "lh(number).googleusercontent.com" formats were broken because the regex was looking for a second forward slash.

Examples:
lh7.googleusercontent.com
lh7-us.googleusercontent.com

gallery_dl/extractor/blogger.py

@@ -37,7 +37,8 @@ def items(self):
         findall_image = re.compile(
             r'src="(https?://(?:'
             r'blogger\.googleusercontent\.com/img|'
-            r'lh\d+\.googleusercontent\.com/|'
+            r'lh\d+\.googleusercontent\.com|'
+            r'lh\d+-\w+\.googleusercontent\.com|'
             r'\d+\.bp\.blogspot\.com)/[^"]+)').findall
         findall_video = re.compile(
             r'src="(https?://www\.blogger\.com/video\.g\?token=[^"]+)').findall