Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, as nothing has been merged
here.

Additional commits post-branch will follow.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

gperf: reverse size_type patch from r258115.

Silencing the broken warning as done in r258139 renders the
code unreacheable. An option could've been to turn off the
warnings in gperf but given that the code is not being used
it is better to just revert the original change altogether.

This code was never MFC'd.

Repair build after svn r258115

options.get_size_type() appears to return a const char *, so assume that
its a string as oppose to *nothing*. I have no idea what apple's code is
trying to do here:

http://opensource.apple.com/source/gperf/gperf-9/patches/size_type.patch

gperf: bring small update from Apple Developers tools 4.4

From [1]

offset.patch
Makes use the C offsetof() macro.

size_type.patch
Lets you specify the type for length parameters.

[1] http://opensource.apple.com/source/gperf/gperf-9/patches/

MFC after: 3 weeks

In contrib/gperf/src/output.cc, use the correct printf length modifier
for a ptrdiff_t.

MFC after: 1 week

upgrade gperf to the last GPLv2 version (3.0.3)

Reviewed by: cognet
Approved by: cognet