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Fix documentation around optional arguments. This includes:
- Syncing between the usage string in code and in the man page. - Adding optional arguments that were not mentioned (such as shell-command arguments). - Adding square brackets around arguments that are actually optional. From Julian Prein (julian at druck dot dev) in GitHub issue 4419.
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@ -66,7 +66,7 @@ const struct cmd_entry cmd_show_hooks_entry = {
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.alias = NULL,
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.args = { "gpt:w", 0, 1, NULL },
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.usage = "[-gpw] " CMD_TARGET_PANE_USAGE,
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.usage = "[-gpw] " CMD_TARGET_PANE_USAGE " [hook]",
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.target = { 't', CMD_FIND_PANE, CMD_FIND_CANFAIL },
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