Plan.why.ver: def of ezx@1.13.0.0
Import: import ezx@1.13.0.0/src/pub/plan.bend as Plan
Lines 206-210 of ezx@1.13.0.0/src/pub/plan.bend: https://jend.leeeet.dev/read.txt?path=ezx@1.13.0.0/src/pub/plan.bend&start_line=206&end_line=210

import Base

# why a `version` that is not MAJOR.MINOR.PATCH is refused
def why.ver(+ver: String) -> String:
  "ez: version = \"" ++ ver ++ "\" is not MAJOR.MINOR.PATCH: three numbers " ++
    "with no leading zeros and no pre-release or build suffix, which ez " ++
    "publishes as bend's four-part MAJOR.MINOR.PATCH.0"

Uses (2):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String.append