MAINT: Bump version (#1944)

codespell_lib/_codespell.py

diff --git a/codespell_lib/_codespell.py b/codespell_lib/_codespell.py
index b1d39a9..d8bb6ef 100755
--- a/codespell_lib/_codespell.py
+++ b/codespell_lib/_codespell.py
@@ -38,7 +38,7 @@
 USAGE = """
 \t%prog [OPTIONS] [file1 file2 ... fileN]
 """
-VERSION = '2.1.0'
+VERSION = '2.2.dev0'
 
 supported_languages_en = ('en', 'en_GB', 'en_US', 'en_CA', 'en_AU')
 supported_languages = supported_languages_en