(CommandList children: [ (C {(test_expect_success)} {(SQ <'determine default pager'>)} { (SQ <'\n'> <'\ttest_might_fail git config --unset core.pager &&\n'> <'\tless=$(\n'> <'\t\tunset PAGER GIT_PAGER;\n'> <'\t\tgit var GIT_PAGER\n'> <'\t) &&\n'> <'\ttest -n "$less"\n'> ) } ) (If arms: [ (if_arm cond: [ (SimpleCommand words: [{(expr)} {(DQ ($ VSub_Name '$less'))} {(Lit_Other ':')} {(SQ <'[a-z][a-z]*$'>)}] redirects: [(Redir op_id:Redir_Great fd:-1 arg_word:{(/dev/null)} spids:[35])] ) ] action: [(C {(test_set_prereq)} {(SIMPLEPAGER)})] spids: [-1 38] ) ] spids: [-1 45] ) ] )