m4 ChangeLog NEWS doc/m4.texinfo src/builtin.c ... [branch-1_4]

[Eric Blake]

CVSROOT:        /sources/m4
Module name:    m4
Branch:         branch-1_4
Changes by:     Eric Blake <ericb>      06/07/10 01:44:10

Modified files:
        .              : ChangeLog NEWS 
        doc            : m4.texinfo 
        src            : builtin.c m4.c output.c path.c 

Log message:
        * doc/m4.texinfo (Undivert): Fix typo in last commit.
        * src/m4.c (usage): Document M4PATH.
        * src/path.c (path_search): Reject empty string.
        * src/output.c (insert_diversion): Ignore diversion 0.
        * src/builtin.c (m4_undivert): Ignore empty string.
        * NEWS: Document this fix.

CVSWeb URLs:
http://cvs.savannah.gnu.org/viewcvs/m4/ChangeLog?cvsroot=m4&only_with_tag=branch-1_4&r1=1.1.1.1.2.102&r2=1.1.1.1.2.103
http://cvs.savannah.gnu.org/viewcvs/m4/NEWS?cvsroot=m4&only_with_tag=branch-1_4&r1=1.1.1.1.2.30&r2=1.1.1.1.2.31
http://cvs.savannah.gnu.org/viewcvs/m4/doc/m4.texinfo?cvsroot=m4&only_with_tag=branch-1_4&r1=1.1.1.1.2.33&r2=1.1.1.1.2.34
http://cvs.savannah.gnu.org/viewcvs/m4/src/builtin.c?cvsroot=m4&only_with_tag=branch-1_4&r1=1.1.1.1.2.18&r2=1.1.1.1.2.19
http://cvs.savannah.gnu.org/viewcvs/m4/src/m4.c?cvsroot=m4&only_with_tag=branch-1_4&r1=1.1.1.1.2.13&r2=1.1.1.1.2.14
http://cvs.savannah.gnu.org/viewcvs/m4/src/output.c?cvsroot=m4&only_with_tag=branch-1_4&r1=1.1.1.1.2.6&r2=1.1.1.1.2.7
http://cvs.savannah.gnu.org/viewcvs/m4/src/path.c?cvsroot=m4&only_with_tag=branch-1_4&r1=1.1.1.1.2.4&r2=1.1.1.1.2.5