MNT: Bump fallback version to 4.0.0rc1.dev0

Author: effigies

nibabel/info.py

@@ -13,7 +13,7 @@
 _version_major = 4
 _version_minor = 0
 _version_micro = 0
-_version_extra = 'dev'
+_version_extra = 'rc1.dev0'
 
 # Format expected by setup.py and doc/source/conf.py: string of form "X.Y.Z"
 VERSION = f"{_version_major}.{_version_minor}.{_version_micro}{_version_extra}"