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).

1 files changed, 1 insertions, 1 deletions

diff --git a/configure b/configure
index 6b9828960..03ee84d46 100755
--- a/configure
+++ b/configure
@@ -3670,7 +3670,7 @@ if test "x$enable_lts" = "xyes"; then :
         HAVE_FILE_TRANSFER=""
         HAVE_SUID="-DHAVE_SUID"
         BUSYBOX_WORKAROUND="no"
-        HAVE_CONTRIB_INSTALL="no",
+        HAVE_CONTRIB_INSTALL="no"
 
 fi