[gegl] gblur-1d: remove need for an initialize to zero loop

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

commit 4a73661ec722687a2c2c7033e078d7f426841a9f
Author: Øyvind Kolås <pippin gimp org>
Date:   Tue Oct 30 21:56:27 2018 +0100

    gblur-1d: remove need for an initialize to zero loop

 operations/common/gblur-1d.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/operations/common/gblur-1d.c b/operations/common/gblur-1d.c
index 31fa8dcdf..9ffc5c39f 100644
--- a/operations/common/gblur-1d.c
+++ b/operations/common/gblur-1d.c
@@ -343,9 +343,9 @@ fix_right_boundary_generic (gdouble        *buf,
     {
       gdouble tmp[nc];
       for (c = 0; c < nc ; c++)
-        tmp[c] = 0.0;
+        tmp[c] = m[i][0] * u[0 * nc + c];
 
-      for (k = 0; k < 3; k++)
+      for (k = 1; k < 3; k++)
         {
           for (c = 0; c < nc ; c++)
             tmp[c] += m[i][k] * u[k * nc + c];