[gnome-photos] operation-shadows-highlights-correction: Fix typo

[Debarshi Ray <debarshir src gnome org>]

commit a40f88e73682e116a0ca204cab3c29afa3f4422e
Author: Debarshi Ray <debarshir gnome org>
Date:   Wed Dec 20 08:12:31 2017 +0100

    operation-shadows-highlights-correction: Fix typo

 src/photos-operation-shadows-highlights-correction.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/photos-operation-shadows-highlights-correction.c 
b/src/photos-operation-shadows-highlights-correction.c
index d04172e8..2706d607 100644
--- a/src/photos-operation-shadows-highlights-correction.c
+++ b/src/photos-operation-shadows-highlights-correction.c
@@ -201,7 +201,7 @@ photos_operation_shadows_highlights_correction_process (GeglOperation *operation
           lref = copysignf (la_abs > low_approximation ? 1.0f / la_abs : 1.0f / low_approximation, la);
 
           la_inverted = 1.0f - la;
-          la_inverted_abs = fabsf (1.0f - la);
+          la_inverted_abs = fabsf (la_inverted);
           href = copysignf (la_inverted_abs > low_approximation ? 1.0f / la_inverted_abs : 1.0f / 
low_approximation,
                             la_inverted);
 
@@ -247,7 +247,7 @@ photos_operation_shadows_highlights_correction_process (GeglOperation *operation
           lref = copysignf (la_abs > low_approximation ? 1.0f / la_abs : 1.0f / low_approximation, la);
 
           la_inverted = 1.0f - la;
-          la_inverted_abs = fabsf (1.0f - la);
+          la_inverted_abs = fabsf (la_inverted);
           href = copysignf (la_inverted_abs > low_approximation ? 1.0f / la_inverted_abs : 1.0f / 
low_approximation,
                             la_inverted);