m4 ChangeLog THANKS checks/check-them checks/ge... [branch-1_4]

[Eric Blake]

CVSROOT:        /sources/m4
Module name:    m4
Branch:         branch-1_4
Changes by:     Eric Blake <ericb>      07/05/25 12:58:50

Modified files:
        .              : ChangeLog THANKS 
        checks         : check-them get-them 
        doc            : m4.texinfo 

Log message:
        Test -s in testsuite.
        * doc/m4.texinfo (Preprocessor features): Add a test.
        * checks/get-them: Support extra options in testsuite.
        * checks/check-them (examples): Use extra options.
        * THANKS: Update.
        Reported by Sergey Poznyakoff.

CVSWeb URLs:
http://cvs.savannah.gnu.org/viewcvs/m4/ChangeLog?cvsroot=m4&only_with_tag=branch-1_4&r1=1.1.1.1.2.262&r2=1.1.1.1.2.263
http://cvs.savannah.gnu.org/viewcvs/m4/THANKS?cvsroot=m4&only_with_tag=branch-1_4&r1=1.1.1.1.2.28&r2=1.1.1.1.2.29
http://cvs.savannah.gnu.org/viewcvs/m4/checks/check-them?cvsroot=m4&only_with_tag=branch-1_4&r1=1.1.1.1.2.14&r2=1.1.1.1.2.15
http://cvs.savannah.gnu.org/viewcvs/m4/checks/get-them?cvsroot=m4&only_with_tag=branch-1_4&r1=1.1.1.1.2.9&r2=1.1.1.1.2.10
http://cvs.savannah.gnu.org/viewcvs/m4/doc/m4.texinfo?cvsroot=m4&only_with_tag=branch-1_4&r1=1.1.1.1.2.123&r2=1.1.1.1.2.124