templates: fix deprecated type option `--bool`

The `--bool` option to `git-config` is marked as historical, and users are
recommended to use `--type=bool` instead. This commit replaces all occurrences
of `--bool` in the templates.

Also note that, no other deprecated type options are found, including `--int`,
`--bool-or-int`, `--path`, or `--expiry-date`.

Signed-off-by: Lucius Hu <orctarorga@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

templates/hooks--pre-commit.sample

@@ -16,7 +16,7 @@ else
 fi
 
 # If you want to allow non-ASCII filenames set this variable to true.
-allownonascii=$(git config --bool hooks.allownonascii)
+allownonascii=$(git config --type=bool hooks.allownonascii)
 
 # Redirect output to stderr.
 exec 1>&2

templates/hooks--update.sample

@@ -43,11 +43,11 @@ if [ -z "$refname" -o -z "$oldrev" -o -z "$newrev" ]; then
 fi
 
 # --- Config
-allowunannotated=$(git config --bool hooks.allowunannotated)
-allowdeletebranch=$(git config --bool hooks.allowdeletebranch)
-denycreatebranch=$(git config --bool hooks.denycreatebranch)
-allowdeletetag=$(git config --bool hooks.allowdeletetag)
-allowmodifytag=$(git config --bool hooks.allowmodifytag)
+allowunannotated=$(git config --type=bool hooks.allowunannotated)
+allowdeletebranch=$(git config --type=bool hooks.allowdeletebranch)
+denycreatebranch=$(git config --type=bool hooks.denycreatebranch)
+allowdeletetag=$(git config --type=bool hooks.allowdeletetag)
+allowmodifytag=$(git config --type=bool hooks.allowmodifytag)
 
 # check for no description
 projectdesc=$(sed -e '1q' "$GIT_DIR/description")