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fix issue with failed history expansion changing the history list offset; fix some tests to avoid problems with error messages that differ between systems; fix issue with readline rl_abort not clearing any pending command to execute
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@@ -1448,6 +1448,13 @@ array variables.
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Namerefs can be unset using the \fB\-n\fP option to the \fBunset\fP builtin.
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Otherwise, if \fBunset\fP is executed with the name of a nameref variable
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as an argument, the variable referenced by the nameref variable is unset.
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.PP
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When the shell starts, it reads its environment and creates a shell
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variable from each environment variable that has a valid name,
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as described below
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(see
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.SM
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.BR ENVIRONMENT ).
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.SS Positional Parameters
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A
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.I positional parameter
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