[gimp] app: use L*, a* and b* for the Lab channel short names.

[Jehan Pagès <jehanp src gnome org>]

commit eaec634ed3ad7a30b7dfbf8ac3dcf2251821b189
Author: Jehan <jehan girinstud io>
Date:   Mon Jan 8 16:57:26 2018 +0100

    app: use L*, a* and b* for the Lab channel short names.
    
    Elle Stone says (cf. bug 791484, comment 9):
    > there are several variants of "Lab" out there, with the most commonly
    > used (and the version GIMP currently uses) being the 1976 version,
    > which uses asterisks to differentiate it from the earlier "Hunter"
    > version. So yes, asterisks are technically correct.
    
    Better use the most conventional naming. And as a side effect, it makes
    differentiating Lab a* and Alpha shortened names more obvious, while not
    making them that much bigger (2 characters instead of one for "a*").

 app/widgets/gimpcolorframe.c |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/app/widgets/gimpcolorframe.c b/app/widgets/gimpcolorframe.c
index e9a11d4..fa27bab 100644
--- a/app/widgets/gimpcolorframe.c
+++ b/app/widgets/gimpcolorframe.c
@@ -855,12 +855,12 @@ gimp_color_frame_update (GimpColorFrame *frame)
       break;
 
     case GIMP_COLOR_FRAME_MODE_LAB:
-      /* TRANSLATORS: L for Lightness (Lab color space) */
-      names[0] = C_("Lab color space", "L:");
+      /* TRANSLATORS: L* for Lightness (Lab color space) */
+      names[0] = C_("Lab color space", "L*:");
       /* TRANSLATORS: a* color channel in Lab color space */
-      names[1] = C_("Lab color space", "A:");
+      names[1] = C_("Lab color space", "a*:");
       /* TRANSLATORS: b* color channel in Lab color space */
-      names[2] = C_("Lab color space", "B:");
+      names[2] = C_("Lab color space", "b*:");
 
       if (has_alpha)
         /* TRANSLATORS: A for Alpha (color transparency) */