[Merge] Get minitest passing again

One significant change is to the way miniperl gets its @INC set up.
Now buildcustomize.pl replaces lib with its special list, instead of
clobbering the entirety of @INC.  This allows tests to use runperl
with -I, without having to go through hoops to get things to work.
Update Unicode-Collate to CPAN version 1.04

  [DELTA]

1.04  Sat Dec  7 11:34:18 2013
    - XS: a workaround for perl 5.6.x to handle U+FFFF correctly.
      unpack_U() is implemented by using XS again as well as that in 1.02,
      but now that is used only in the versions before perl 5.8.0.
Remove tests of $File::Find::untaint_pattern.

This in effect reverts commit 5ea8618bf5cf20c62d2ccca6aca10d97e0945b89.
The effects of this package variable are not yet well enough understood to
write tests that pass consistently.  The block of tests removed was failing on
Win32 in all situations and on Linux in some.

For: RT #120711
regcomp.c: White-space only

Vertically stack ? : ternary operators for better visibility
PATCH: [Perl #42957] Suggesting warning for useless greediness operator

This adds the requested warning.  Now we'll see if anything breaks as a
result.
regcomp.c: Silence compiler warnings

This changes some formats to add an 'l' modifier, and adds a cast.
Error check VMS's backticks stdin inheritance.

This is a follow-up to e2d6c6fbf5bb.  The use case I've seen is
that the translation of SYS$INPUT succeeds but the stat on the
resulting file/device fails, possibly due to object protections.
So we would be giving the child something it can't open.

Add error checking to the logic so in order to set up inheritance
of SYS$INPUT:

 1.) The translation of SYS$INPUT must succeed.
 2.) stat() on the resulting spec must succeed.
 3.) The resulting spec must not be a directory.
Silence core test Useless use of greediness modifier

There are two .t files that have useless greediness modifiers.  A
warning was instroduced in commit
4fa6dd16d2149c2aeeb32633e3a796d5ebc5b657 when this occurs.  This
silences those warnings in the two .t files
Improve comments

These improve some comments introduced by
99dd98225733b6b66a524dfeb20a486e012e39b3.

Suggested by Lukas Mai
Test previously untested branches in lib/File/Find.pm.
Fixes the case where on 64bit big-endian boxes, calls to semctl(id,semnum,SETVAL,$wantedval) will ignore the passed in $wantedval, and always use 0
Brian Childs is now a perl AUTHOR
perldelta for 64d7628235
cleanup ..\git_version.h rule in win32/Makefile

Group the nmake line onto 1 line similar to the dmake version, for 1 shell
call out vs 3. "&&" makes sure the build stops if miniperl returns non-0
instead of ignoring the code, cd'ing back to dir win32, and continuing
the build. Part of RT #120727.
WinCE makefile will now hypothetically build git_version.h

The dependency on $(CONFIGPM) is for git_version.h to exist early enough
to be copied to the CORE dir. In real life, git_version.h still is built
by a Desktop build since WinCE doesn't yet support being built with a
system Perl. This commit is a step in getting WinCE to build without
needing a Desktop build first and for better integration with Castaway's
Cross changes in the future. The changes in this commit were tested with
other unpublished changes that tried to do a WinCE build with a system
Perl.
perlfunc: clarify subroutine value of caller()

The docs don't actually say what the fourth value returned by caller()
is; in particular, the $subroutine value is a bit confusing because
it's the sub called by the call site, not the sub containing the call
site. [perl #120696].
pod/perlhacktips: Further info on glibc bug

Commit 6bfe0388956736a32b874cc5e31cc6437260b227 prompted me to do some
more digging.  The bug in glibc has apparently been fixed in 2.17.
cflags.SH: Fix a typo, cflags should be ccflags

This went undetected for the longest time since most flags are
irrelevant at this point, but is vital if you are using --sysroot.
Optimise out PUSHMARK/RETURN if return is the last statement in a sub.

This makes:

  sub baz { return $cat; }

Behave like:

  sub baz { $cat; }

Which is notably faster.

Unpatched:

  ./perl -Ilib/ ~/stuff/bench.pl
  Benchmark: timing 40000000 iterations of normal, ret...
    normal:  3 wallclock secs ( 1.60 usr +  0.01 sys =  1.61 CPU) @ 24844720.50/s (n=40000000)
       ret:  3 wallclock secs ( 2.08 usr +  0.00 sys =  2.08 CPU) @ 19230769.23/s (n=40000000)

Patched:

  ./perl -Ilib ~/stuff/bench.pl
  Benchmark: timing 40000000 iterations of aret, normal...
    normal:  2 wallclock secs ( 1.72 usr +  0.00 sys =  1.72 CPU) @ 23255813.95/s (n=40000000)
       ret:  2 wallclock secs ( 1.72 usr +  0.00 sys =  1.72 CPU) @ 23255813.95/s (n=40000000)

The difference in OP trees can be seen here:

Unpatched:

  $ perl  -MO=Concise,baz -e 'sub baz { return $cat }'
  main::baz:
  5  <1> leavesub[1 ref] K/REFC,1 ->(end)
  -     <@> lineseq KP ->5
  1        <;> nextstate(main 1 -e:1) v ->2
  4        <@> return K ->5
  2           <0> pushmark s ->3
  -           <1> ex-rv2sv sK/1 ->4
  3              <#> gvsv[*cat] s ->4
  -e syntax OK

Patched:

  $ ./perl -Ilib  -MO=Concise,baz -e 'sub baz { return $cat }'
  main::baz:
  3  <1> leavesub[1 ref] K/REFC,1 ->(end)
  -     <@> lineseq KP ->3
  1        <;> nextstate(main 1 -e:1) v ->2
  -        <@> return K ->-
  -           <0> pushmark s ->2
  -           <1> ex-rv2sv sK/1 ->-
  2              <$> gvsv(*cat) s ->3
  -e syntax OK

(Includes some modifications from Steffen)
Explain how '--' works in command-line invocation.

Excerpted from 'man bash': GNU Bash-2.05b, 2002 July 15.

For: RT #120732, as requested by bulk88.