[gtk+] Specify more options to sassc

[Emmanuele Bassi <ebassi src gnome org>]

commit 69ec6234a42a380c4a33fdcd84740e2b34dcb46e
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Wed May 3 15:46:35 2017 +0100

    Specify more options to sassc
    
    We should use the compact style, to minimize the whitespace; and we
    should omit the source map URL comment as well.

 gtk/Makefile.am |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtk/Makefile.am b/gtk/Makefile.am
index 70b1d5f..9317804 100644
--- a/gtk/Makefile.am
+++ b/gtk/Makefile.am
@@ -1314,7 +1314,7 @@ scss_verbose = $(scss_verbose_@AM_V@)
 scss_verbose_ = $(scss_verbose_@AM_DEFAULT_V@)
 scss_verbose_0 = @echo "  SCSS     $@";
 
-SASSC_OPTS = -a
+SASSC_OPTS = -a -M -t compact
 
 theme/Adwaita/gtk-contained.css: $(top_srcdir)/gtk/theme/Adwaita/gtk-contained.scss $(adwaita_theme_scss)
        $(scss_verbose) $(MKDIR_P) $(dir $@) && $(SASSC) $(SASSC_OPTS) $< $@ || rm -f $@