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Commit0cf56f1

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Improve ParseConfigFp comment wrt head/tail
The head_p and tail_p pointers passed to ParseConfigFp() are actuallyinput/output parameters, not strictly output paramaters. This updatesthe function comment to reflect that.Per discussion with Tom.
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‎src/backend/utils/misc/guc-file.l

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@@ -604,12 +604,12 @@ GUC_flex_fatal(const char *msg)
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*config_file: absolute or relative path name of the configuration file
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*depth: recursion depth (should be 0 in the outermost call)
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*elevel: error logging level to use
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* Output parameters:
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*Input/Output parameters:
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*head_p, tail_p: head and tail of linked list of name/value pairs
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*
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* *head_p and *tail_p must be initialized to NULLbefore calling the outer
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*recursion level. On exit, they contain a list of name-value pairs read
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* from the input file(s).
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* *head_p and *tail_p musteitherbe initialized to NULLor valid pointers
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*to a ConfigVariable list before calling the outer recursion level. Any
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*name-value pairs readfrom the input file(s) will be added to the list.
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*
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* Returns TRUE if successful, FALSE if an error occurred. The error has
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* already been ereport'd, it is only necessary for the caller to clean up

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