(command.CommandList
  children: [
    (C {<set>} {<-f>})
    (command.ShAssignment
      pairs: [
        (assign_pair
          lhs: (sh_lhs_expr.Name name:file_patterns)
          op: assign_op.Equal
          rhs: 
            {
              (SQ <'\n'> <'*.1\n'> <'*.c\n'> <'*.cpp\n'> <'*.h\n'> <'*.jl\n'> <'*.lsp\n'> <'*.scm\n'> 
                <'*.inc\n'> <'*.make\n'> <'*.mk\n'> <'*.md\n'> <'*.rst\n'> <'*.sh\n'> <'*.yml\n'> <'*Makefile\n'>
              )
            }
          spids: [24]
        )
      ]
    )
    (command.If
      arms: [
        (if_arm
          cond: 
            (condition.Shell
              commands: [
                (command.Sentence
                  child: 
                    (C {<git>} {<--no-pager>} {<grep>} {<--color>} {<-n>} {<--full-name>} {<-e>} {(SQ <' $'>)} 
                      {<-->} {($ Id.VSub_DollarName '$file_patterns')}
                    )
                  terminator: <Id.Op_Semi _>
                )
              ]
            )
          action: [
            (C {<echo>} {(DQ <'Error: trailing whitespace found in source file(s)'>)})
            (C {<echo>} {(DQ )})
            (C {<echo>} {(DQ <'This can often be fixed with:'>)})
            (C {<echo>} {(DQ <'    git rebase --whitespace=fix HEAD~1'>)})
            (C {<echo>} {(DQ <or>)})
            (C {<echo>} {(DQ <'    git rebase --whitespace=fix master'>)})
            (C {<echo>} {(DQ <'and then a forced push of the correct branch'>)})
            (command.ControlFlow token:<Id.ControlFlow_Exit exit> arg_word:{<1>})
          ]
          spids: [48 73]
        )
      ]
    )
  ]
)