themes: Avoid ':' in custom target names

For whatever reason, meson decides to use custom
target names in the file system, and on Windows,
the ':' is causing trouble here. So avoid it.

Fixes: #5280

diff --git a/gtk/theme/Default/meson.build b/gtk/theme/Default/meson.build
index 5e52a8b3ce314d11430ba5b45f5095f9065b083f..d0f9571b7581a45f2c5099b283bda430e116cf19 100644 (file)
--- a/gtk/theme/Default/meson.build
+++ b/gtk/theme/Default/meson.build
@@ -15,7 +15,7 @@ default_theme_variants = [
 default_theme_deps = []
 
 foreach variant: default_theme_variants
-  default_theme_deps += custom_target('Default theme variant: ' + variant,
+  default_theme_deps += custom_target('Default theme variant ' + variant,
     input: 'Default-@0@.scss'.format(variant),
     output: 'Default-@0@.css'.format(variant),
     command: [