[tracker-miners: 2/2] build: Make `-Dman=false` actually disable man pages

[Sam Thursfield <sthursfield src gnome org>]

commit cfc3c3b73bbe84427a845429a0a6541bddb3dffd
Author: Sam Thursfield <sam afuera me uk>
Date:   Mon May 11 00:12:11 2020 +0200

    build: Make `-Dman=false` actually disable man pages

 docs/meson.build | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
---
diff --git a/docs/meson.build b/docs/meson.build
index bf012f4fc..aa29e4c9b 100644
--- a/docs/meson.build
+++ b/docs/meson.build
@@ -1 +1,3 @@
-subdir('manpages')
+if get_option('man')
+  subdir('manpages')
+endif