[gnome-builder] libide: enable format string provider by default

[Christian Hergert <chergert src gnome org>]

commit 488fc20d3fb4c20f086efb862c76c15613a7c088
Author: Christian Hergert <christian hergert me>
Date:   Sun Mar 15 13:52:39 2015 -0700

    libide: enable format string provider by default

 libide/c/ide-c-language.c |   10 +++++++---
 1 files changed, 7 insertions(+), 3 deletions(-)
---
diff --git a/libide/c/ide-c-language.c b/libide/c/ide-c-language.c
index a30104c..e065e21 100644
--- a/libide/c/ide-c-language.c
+++ b/libide/c/ide-c-language.c
@@ -18,6 +18,7 @@
 
 #include <glib/gi18n.h>
 
+#include "ide-c-format-provider.h"
 #include "ide-c-indenter.h"
 #include "ide-c-language.h"
 #include "ide-clang-completion-provider.h"
@@ -46,13 +47,16 @@ G_DEFINE_TYPE_EXTENDED (IdeCLanguage, ide_c_language, IDE_TYPE_LANGUAGE, 0,
 static GList *
 ide_c_language_get_completion_providers (IdeLanguage *language)
 {
+  GList *providers = NULL;
+
   g_return_val_if_fail (IDE_IS_C_LANGUAGE (language), NULL);
 
+  providers = g_list_append (providers, g_object_new (IDE_TYPE_C_FORMAT_PROVIDER, NULL));
 #if 0
-  return g_list_append (NULL, g_object_new (IDE_TYPE_CLANG_COMPLETION_PROVIDER, NULL));
-#else
-  return NULL;
+  providers = g_list_append (providers, g_object_new (IDE_TYPE_CLANG_COMPLETION_PROVIDER, NULL));
 #endif
+
+  return providers;
 }
 
 static IdeDiagnostician *