[banshee] build: partially revert previous commit to fix the build

[AndrÃs Aragoneses <aaragoneses src gnome org>]

commit 15d6fddd1e10b93fef95ddea118701c7c6953c63
Author: Andres G. Aragoneses <knocte gmail com>
Date:   Mon Jan 21 21:56:53 2013 +0000

    build: partially revert previous commit to fix the build
    
    Apologies, 3e6d7a1750f1bec55ec1e81f25cce7b91eb2372e broke the build [1]
    so we need to restore what seems to be the only 4spaces occurrence in
    the makefiles. Don't ask me why it doesn't work with a tabs...
    
    [1] Making all in Banshee.AmazonMp3
      GEN   bamz
    /bin/bash: LINK: command not found
    make[4]: *** [bamz] Error 127
    make[3]: *** [all-recursive] Error 1
    make[2]: *** [all-recursive] Error 1
    make[1]: *** [all-recursive] Error 1
    make: *** [all] Error 2

 build/build.rules.mk |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/build/build.rules.mk b/build/build.rules.mk
index aa37864..344b90f 100644
--- a/build/build.rules.mk
+++ b/build/build.rules.mk
@@ -8,8 +8,8 @@ INSTALL_ICONS = $(top_srcdir)/build/private-icon-theme-installer "$(mkinstalldir
 INSTALL_DIR_RESOLVED = $(firstword $(subst , $(DEFAULT_INSTALL_DIR), $(INSTALL_DIR)))
 
 if ENABLE_TESTS
-	LINK += " $(NUNIT_LIBS)"
-	ENABLE_TESTS_FLAG = "-define:ENABLE_TESTS"
+    LINK += " $(NUNIT_LIBS)"
+    ENABLE_TESTS_FLAG = "-define:ENABLE_TESTS"
 endif
 
 FILTERED_LINK = $(shell echo "$(LINK)" | $(UNIQUE_FILTER_PIPE))