xsetroot: Changes to 'master'

[Alan Coopersmith]

 configure.ac     |   10 ++++++----
 man/xsetroot.man |    4 +++-
 xsetroot.c       |   44 +++++++++++++++++++++++++++-----------------
 3 files changed, 36 insertions(+), 22 deletions(-)

New commits:
commit d8cb397df5ecb94e7b0ea05d2407f4334a36eb87
Author: Alan Coopersmith <alan.coopersmith at oracle.com>
Date:   Sun Jan 13 11:06:39 2013 -0800

    Add -version option
    
    Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>

commit 1636536e4d158e994f045133267ae9b4b278c4f3
Author: Alan Coopersmith <alan.coopersmith at oracle.com>
Date:   Sun Jan 13 10:33:36 2013 -0800

    Combine usage message strings
    
    Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>

commit 84053f70451876dfadef1c718cdbbbb319f7f2d2
Author: Alan Coopersmith <alan.coopersmith at oracle.com>
Date:   Sun Jan 13 10:30:25 2013 -0800

    Mark usage with _X_NORETURN to quiet -Wmissing-noreturn warning
    
    Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>

commit 0e85edbfe016c4a243ced32d0dcb01f7286b60a1
Author: Alan Coopersmith <alan.coopersmith at oracle.com>
Date:   Sun Jan 13 10:23:38 2013 -0800

    config: Add missing AC_CONFIG_SRCDIR
    
    Regroup AC statements under the Autoconf initialization section.
    Regroup AM statements under the Automake initialization section.
    
    Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>