[ostree] deltas: Make min-fallback-size 0 actually disable fallbacks

[Alexander Larsson <alexl src gnome org>]

commit b22b859dc522d08188213ddfae6bf91de027d51f
Author: Alexander Larsson <alexl redhat com>
Date:   Fri Oct 16 11:03:53 2015 +0200

    deltas: Make min-fallback-size 0 actually disable fallbacks
    
    This is what the docs specify.

 .../ostree-repo-static-delta-compilation.c         |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/libostree/ostree-repo-static-delta-compilation.c 
b/src/libostree/ostree-repo-static-delta-compilation.c
index 3fe856b..d327d26 100644
--- a/src/libostree/ostree-repo-static-delta-compilation.c
+++ b/src/libostree/ostree-repo-static-delta-compilation.c
@@ -1085,7 +1085,7 @@ generate_delta_lowlatency (OstreeRepo                       *repo,
                                            NULL, &uncompressed_size,
                                            cancellable, error))
         goto out;
-      if (builder->min_fallback_size_bytes >= 0 &&
+      if (builder->min_fallback_size_bytes > 0 &&
           uncompressed_size > builder->min_fallback_size_bytes)
         fallback = TRUE;