Simple awk -> sed simplification

gistfile1.diff

commit d2bc95ebf2545b1d86463812f82917d943d8f77b
Author: Deepak Jois <[email protected]>
Date:   Sat Dec 3 21:18:13 2011 -0800

    complicated awk -> simpler sed

diff --git a/post-fiddle-via-gist.sh b/post-fiddle-via-gist.sh
old mode 100644
new mode 100755
index 328b5bd..fd6d8de
--- a/post-fiddle-via-gist.sh
+++ b/post-fiddle-via-gist.sh
@@ -127,11 +127,7 @@ GIST_ID=$(
   )                 |
 
   # Insert commas between each JSON field
-  # FIXME Crude awk script. Find better way
-  awk '
-      NR == 1 { prev = $0 }
-      NR > 1 { print prev "," ; prev=$0 }
-      END { print }'  |
+  sed '$!{s/$/,/;}'  |
 
   # Insert gist template for posting to API
   layout            |