* lisp/mail/rmail.el (rmail-set-header-1): Handle multi-line headers
Ignore case.
* epg.el (epg--start): Ignore errors when /dev/fd/0 does not exist.
* lisp/erc/erc-backend.el (312): Fix typo.
Merge from gnulib.

This incorporates:
2013-01-04 stdio: remove now-unnecessary stdio.c
2013-01-04 fprintftime: depend on stdio, not ignore-value
2013-01-04 fwrite: silence __wur only for older glibc versions
2013-01-04 fwrite: silence __wur without using inline
* lib/stdio.c: Remove.
* lib/stdio.in.h, lib/strftime.c: Update from gnulib.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
* src/fileio.c (Ffile_acl): Undocument return format.
* doc/lispref/files.texi (File Attributes): Idem.
* lisp/doc-view.el (doc-view-scale-internally): New var.
(doc-view-enlarge, doc-view-insert-image): Obey it.
* lisp/view.el (view--enable, view--disable): Rename from view-mode-enable
and view-mode-disable and assume it's called from view-mode.
(view-mode-enable, view-mode-disable): Redefine as obsolete
compatibility layer above view-mode.
(view-mode-enter): Call `view-mode'.
* lisp/files.el (after-find-file): Call `view-mode'.
* lisp/subr.el (internal--called-interactively-p--get-frame): Find aliases
of called-interactively-p as well.
icomplete-prospects-height fix (tiny change)

* icomplete.el (icomplete-completions):
Honor icomplete-prospects-height once more following 2012-11-29 changes.
Auto-commit of generated files.