BF: Too many splits (was accounting for "-" at beginning of yaml list entry,

but that is not present here)

manifest_rules/__init__.py

 #!/usr/bin/env python
 
 
-__version__ = '0.5.1'
+__version__ = '0.5.2'

manifest_rules/test_environment.py

@@ -51,7 +51,7 @@ def preprocess_environment(envfile, condadir, regen_envfile=False):
         #     <package>=<version>
         # or
         #     <package>=<version>=<variant>
-        pkg, ver    = pkg.split(maxsplit=2)
+        pkg, ver    = pkg.split(maxsplit=1)
         ver         = ver.replace(' ', '=')
         packages[i] = f'{pkg}={ver}'