meson.build: quote the GITWEBDIR build configuration

The build configuration options with (non-empty) values, for example
filesystem paths potentially containing spaces, have been set using
the '.set_quoted()' method. However, the GITWEBDIR value has been
set using the '.set()' method instead. In order to correctly quote
the GITWEBDIR value, replace the '.set()' method with '.set_quoted()'.

Signed-off-by: Ramsay Jones <ramsay@ramsayjones.plus.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Author: ramsay-jones

meson.build

@@ -739,7 +739,7 @@ build_options_config.set('GIT_TEST_OPTS', '')
 build_options_config.set('GIT_TEST_PERL_FATAL_WARNINGS', '')
 build_options_config.set_quoted('GIT_TEST_UTF8_LOCALE', get_option('test_utf8_locale'))
 build_options_config.set_quoted('LOCALEDIR', fs.as_posix(get_option('prefix') / get_option('localedir')))
-build_options_config.set('GITWEBDIR', fs.as_posix(get_option('prefix') / get_option('datadir') / 'gitweb'))
+build_options_config.set_quoted('GITWEBDIR', fs.as_posix(get_option('prefix') / get_option('datadir') / 'gitweb'))
 
 if get_option('sane_tool_path').length() != 0
   sane_tool_path = (host_machine.system() == 'windows' ? ';' : ':').join(get_option('sane_tool_path'))