[babl] fast-float: tweak lut generation

[Øyvind Kolås <ok src gnome org>]

commit 2707e591bbe123bb9c5cbe918044af0695706a2f
Author: Øyvind Kolås <pippin gimp org>
Date:   Wed Nov 16 17:12:50 2016 +0100

    fast-float: tweak lut generation

 extensions/fast-float.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/extensions/fast-float.c b/extensions/fast-float.c
index 8148de0..9103bc9 100644
--- a/extensions/fast-float.c
+++ b/extensions/fast-float.c
@@ -449,7 +449,7 @@ init (void)
     fast_pow = babl_lookup_new (core_lookup, NULL, 0.0, 1.0,   0.0001);
     fast_rpow = babl_lookup_new (core_rlookup, NULL, 0.0, 1.0, 0.0001);
 
-    for (f = 0.0; f < 1.0; f+= 0.00001)
+    for (f = 0.0; f < 1.0; f+= 0.000012)
       {
         a = linear_to_gamma_2_2_lut (f);
         a = gamma_2_2_to_linear_lut (f);