Checking patch manual/time.texi...
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@item int tm_isdst
@cindex Daylight Saving Time
@cindex summer time
This is a flag that indicates whether Daylight Saving Time is (or was, or
will be) in effect at the time described.  The value is positive if
Daylight Saving Time is in effect, zero if it is not, and negative if the
information is not available.

@item long int tm_gmtoff
This field describes the time zone that was used to compute this

error: patch failed: manual/time.texi:1010
error: manual/time.texi: patch does not apply