Merge branch 'master' into core-updates

Conflicts:
	gnu-system.am

gnu: Adjust synopses as recommended by 'guix lint'.

Remove leading articles and trailing periods in package synopses.

Merge branch 'master' into core-updates

gnu: elfutils: Add synopsis and description.

* gnu/packages/elf.scm (elfutils): Add synopsis and description.

Merge branch 'master' into core-updates

Conflicts:
	gnu-system.am

gnu: patchelf: Fix platform page size determination.

* gnu/packages/patches/patchelf-page-size.patch: New file.
* gnu/packages/elf.scm (patchelf): Add the patch.
* gnu-system.am (dist_patch_DATA): Add the patch.

gnu: Move libelf and patchelf to (gnu packages elf).

* gnu/packages/patchelf.scm (patchelf): Move to...
* gnu/packages/elf.scm (patchelf): ... here.
* gnu/packages/patchelf.scm: Remove.
* gnu-system.am (GNU_SYSTEM_MODULES): Adjust accordingly.
* gnu/packages/gcc.scm (libelf): Move to...
* gnu/packages/elf.scm (libelf): ... here.
* gnu/packages/cdrom.scm, gnu/packages/icu4c.scm,
  gnu/packages/samba.scm, gnu/packages/scheme.scm, gnu/packages/ssh.scm:
  Adjust references to (gnu packages patchelf).

gnu: Add elfutils.

* gnu/packages/elf.scm: New file.
* gnu-system.am (GNU_SYSTEM_MODULES): Add it.