configure*: fix trailing comma in HAVE_CONTRIB_INSTALL

Consider the current code:

    AS_IF([test "x$enable_lts" = "xyes"], [
    # ...
            HAVE_CONTRIB_INSTALL="no",

Result of testing the value:

    $ HAVE_CONTRIB_INSTALL="no",
    $ printf '%s\n' "$HAVE_CONTRIB_INSTALL"
    no,
    $ test "x$HAVE_CONTRIB_INSTALL" = "xno" &&
      echo equal || echo 'not equal'
    not equal

This means that whenever HAVE_LTS is enabled, HAVE_CONTRIB_INSTALL is
always considered enabled when testing against "no".

But luckily, in the current code the latter variable is only tested
against "yes", so nothing should be affected:

    $ git grep HAVE_CONTRIB_INSTALL |
      grep -v -e '^configure:' -e '^configure.ac:'
    Makefile:ifeq ($(HAVE_CONTRIB_INSTALL),yes)
    config.mk.in:HAVE_CONTRIB_INSTALL=@HAVE_CONTRIB_INSTALL@

Added on commit d1acb31c9 ("compile time: enable LTS", 2021-02-28).

0 files changed, 0 insertions, 0 deletions