Fish didn't like the tac/tail switch. Also removed some print statements (#220)

conf.d/forgit.plugin.fish

@@ -14,7 +14,11 @@ end
 
 function forgit::reverse_lines
     # tac is not available on OSX, tail -r is not available on Linux, so we use either of them
-    tac 2> /dev/null || tail -r
+    if command -v tac &> /dev/null
+        tac
+    else
+        tail -r
+    end
 end
 
 set -g forgit_pager        "$FORGIT_PAGER"
@@ -351,8 +355,6 @@ function forgit::cherry::pick -d "git cherry-picking" --argument-names 'target'
         -m -0 --tiebreak=index
         $FORGIT_CHERRY_PICK_FZF_OPTS
     "
-    echo $base
-    echo $target
     git cherry "$base" "$target" --abbrev -v | forgit::reverse_lines |
         env FZF_DEFAULT_OPTS="$opts" fzf | cut -d' ' -f2 | forgit::reverse_lines |
         xargs -I% git cherry-pick %