proc fixbundle {
    grep -v 'saving bundle' | grep -v 'saved backup' | \
        grep -v added | grep -v adding | \
        grep -v "unable to find 'e' for patching" | \
        grep -v "e: No such file or directory"
}
(CommandList
  children: [
    (FuncDef
      name: fixbundle
      body: 
        (BraceGroup
          children: [
            (Pipeline
              children: [
                (C {(grep)} {(-v)} {(SQ <"saving bundle">)})
                (C {(grep)} {(-v)} {(SQ <"saved backup">)})
                (C {(grep)} {(-v)} {(added)})
                (C {(grep)} {(-v)} {(adding)})
                (C {(grep)} {(-v)} {(DQ ("unable to find 'e' for patching"))})
                (C {(grep)} {(-v)} {(DQ ("e: No such file or directory"))})
              ]
              negated: False
            )
          ]
          spids: [4]
        )
      spids: [0 3]
    )
  ]
)