[gimp] pdb: fix typo s/chanel/channel/

[Michael Natterer <mitch src gnome org>]

commit 12904cffc8389bc2afeb0df36589ff4d60b5a69d
Author: Michael Natterer <mitch gimp org>
Date:   Thu Apr 26 20:46:32 2018 +0200

    pdb: fix typo s/chanel/channel/

 pdb/groups/plug_in_compat.pdb |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/pdb/groups/plug_in_compat.pdb b/pdb/groups/plug_in_compat.pdb
index f438766..b5c0b4f 100644
--- a/pdb/groups/plug_in_compat.pdb
+++ b/pdb/groups/plug_in_compat.pdb
@@ -3821,9 +3821,9 @@ sub plug_in_sinus {
         { name => 'col2', type => 'color',
          desc => 'second color (sometimes unused)' },
         { name => 'alpha1', type => '0 <= float <= 1',
-         desc => 'alpha for the first color (used if the drawable has an alpha chanel)' },
+         desc => 'alpha for the first color (used if the drawable has an alpha channel)' },
         { name => 'alpha2', type => '0 <= float <= 1',
-         desc => 'alpha for the second color (used if the drawable has an alpha chanel)' },
+         desc => 'alpha for the second color (used if the drawable has an alpha channel)' },
         { name => 'blend', type => '0 <= int32 <= 2',
          desc => '0=linear, 1=bilinear, 2=sinusoidal' },
         { name => 'blend_power', type => 'float',