_parse_help: Fix handling of commands with paths.
Regression from commit a614028a9b7e22b76f609a49dc7cfc2b8ad0abcd, need to eval cmd before setting IFS to avoid it being split.
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@ -753,8 +753,8 @@ _init_completion()
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#
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_parse_help()
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{
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local line i option option2 IFS=$' \t\n,/|'
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eval local cmd=$1
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local line i option option2 IFS=$' \t\n,/|'
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"$cmd" ${2:---help} 2>&1 | while read line; do
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[[ $line == *([ $'\t'])-* ]] || continue
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