[gegl] exr-save: avoid hard-coding Imath_2_2 name space

[Øyvind "pippin" Kolås <ok src gnome org>]

commit c1c3541caab485384087bbbcf1c83ef2d5bd4d43
Author: Hussam Al-Tayeb <me hussam eu org>
Date:   Wed Aug 22 14:55:31 2018 +0200

    exr-save: avoid hard-coding Imath_2_2 name space

 operations/external/exr-save.cc | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)
---
diff --git a/operations/external/exr-save.cc b/operations/external/exr-save.cc
index b2032046c..018e5d9af 100644
--- a/operations/external/exr-save.cc
+++ b/operations/external/exr-save.cc
@@ -145,10 +145,10 @@ write_tiled_exr (const float       *pixels,
                           &blue[0], &blue[1],
                           NULL, NULL, NULL);
     {
-    Imf::Chromaticities c1 (Imath_2_2::V2f(red[0],red[1]),
-                            Imath_2_2::V2f(green[0],green[1]),
-                            Imath_2_2::V2f(blue[0],blue[1]),
-                            Imath_2_2::V2f(wp[0],wp[1]));
+    Imf::Chromaticities c1 (Imath::V2f(red[0],red[1]),
+                            Imath::V2f(green[0],green[1]),
+                            Imath::V2f(blue[0],blue[1]),
+                            Imath::V2f(wp[0],wp[1]));
     Imf::addChromaticities (header, c1);
     }
   }
@@ -184,10 +184,10 @@ write_scanline_exr (const float       *pixels,
                            &green[0], &green[1],
                            &blue[0], &blue[1],
                            NULL, NULL, NULL);
-    Imf::Chromaticities c1 (Imath_2_2::V2f(red[0],red[1]),
-                            Imath_2_2::V2f(green[0],green[1]),
-                            Imath_2_2::V2f(blue[0],blue[1]),
-                            Imath_2_2::V2f(wp[0],wp[1]));
+    Imf::Chromaticities c1 (Imath::V2f(red[0],red[1]),
+                            Imath::V2f(green[0],green[1]),
+                            Imath::V2f(blue[0],blue[1]),
+                            Imath::V2f(wp[0],wp[1]));
     Imf::addChromaticities (header, c1);
   }