tag: change default of `pager.tag` to "on"

The previous patch taught `git tag` to only respect `pager.tag` in
list-mode. That patch left the default value of `pager.tag` at "off".

After that patch, it makes sense to let the default value be "on"
instead, since it will help with listing many tags, but will not hurt
users of `git tag -a` as it would have before. Make that change. Update
documentation and tests.

Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Documentation/git-tag.txt

@@ -206,7 +206,7 @@ it in the repository configuration as follows:
 -------------------------------------
 
 `pager.tag` is only respected when listing tags, i.e., when `-l` is
-used or implied.
+used or implied. The default is to use a pager.
 See linkgit:git-config[1].
 
 DISCUSSION

builtin/tag.c

@@ -462,7 +462,7 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
 	}
 
 	if (cmdmode == 'l')
-		setup_auto_pager("tag", 0);
+		setup_auto_pager("tag", 1);
 
 	if ((create_tag_object || force) && (cmdmode != 0))
 		usage_with_options(git_tag_usage, options);

t/t7006-pager.sh

@@ -134,16 +134,16 @@ test_expect_success TTY 'configuration can enable pager (from subdir)' '
 	}
 '
 
-test_expect_success TTY 'git tag -l defaults to not paging' '
+test_expect_success TTY 'git tag -l defaults to paging' '
 	rm -f paginated.out &&
 	test_terminal git tag -l &&
-	! test -e paginated.out
+	test -e paginated.out
 '
 
 test_expect_success TTY 'git tag -l respects pager.tag' '
 	rm -f paginated.out &&
-	test_terminal git -c pager.tag tag -l &&
+	test_terminal git -c pager.tag=false tag -l &&
-	test -e paginated.out
+	! test -e paginated.out
 '
 
 test_expect_success TTY 'git tag -l respects --no-pager' '
@@ -152,32 +152,32 @@ test_expect_success TTY 'git tag -l respects --no-pager' '
 	! test -e paginated.out
 '
 
-test_expect_success TTY 'git tag with no args defaults to not paging' '
+test_expect_success TTY 'git tag with no args defaults to paging' '
 	# no args implies -l so this should page like -l
 	rm -f paginated.out &&
 	test_terminal git tag &&
-	! test -e paginated.out
+	test -e paginated.out
 '
 
 test_expect_success TTY 'git tag with no args respects pager.tag' '
 	# no args implies -l so this should page like -l
 	rm -f paginated.out &&
-	test_terminal git -c pager.tag tag &&
+	test_terminal git -c pager.tag=false tag &&
-	test -e paginated.out
+	! test -e paginated.out
 '
 
-test_expect_success TTY 'git tag --contains defaults to not paging' '
+test_expect_success TTY 'git tag --contains defaults to paging' '
 	# --contains implies -l so this should page like -l
 	rm -f paginated.out &&
 	test_terminal git tag --contains &&
-	! test -e paginated.out
+	test -e paginated.out
 '
 
 test_expect_success TTY 'git tag --contains respects pager.tag' '
 	# --contains implies -l so this should page like -l
 	rm -f paginated.out &&
-	test_terminal git -c pager.tag tag --contains &&
+	test_terminal git -c pager.tag=false tag --contains &&
-	test -e paginated.out
+	! test -e paginated.out
 '
 
 test_expect_success TTY 'git tag -a defaults to not paging' '
@@ -210,8 +210,8 @@ test_expect_failure TTY 'git tag as alias ignores pager.tag with -a' '
 
 test_expect_success TTY 'git tag as alias respects pager.tag with -l' '
 	rm -f paginated.out &&
-	test_terminal git -c pager.tag -c alias.t=tag t -l &&
+	test_terminal git -c pager.tag=false -c alias.t=tag t -l &&
-	test -e paginated.out
+	! test -e paginated.out
 '
 
 # A colored commit log will begin with an appropriate ANSI escape