* elf/dynamic-link.h (_dl_verbose): New variable, declare.
* elf/rtld.c (_dl_verbose): New variable, define.
(dl_main): Define _dl-verbose based on DL_WARN environment variable.
* sysdeps/i386/dl-machine.h (elf_machine_rel): Print warning about
changed size in copy relocation only if symbol in shared object
is larger or _dl_verbose is nonzero.
* sysdeps/m68k/dl-machine.h (elf_machine_rel): Likewise.
* sysdeps/powerpc/dl-machine.h (elf_machine_rel): Likewise.
* sysdeps/sparc/dl-machine.h (elf_machine_rel): Likewise.
* time/strftime.c: Implement # flag which changes case of output for
%a, %b, %B, %p, and %Z format.
When printing numbers, the given field width is always respected.
This means that padding happens only up to the given width.
Proposed by Stephen Gildea <gildea@intouchsys.com>.