[PATCH v2 5/5] doc: remove most recommendations for sleepy_penguin

[Eric Wong <e@80x24.org>]

sleepy_penguin is still a hair faster than libffi+fiddle,
but most users probably won't notice.  So stop documenting
it, but just don't introduce performance regressions for
existing users.
---
 Documentation/dtas-sinkedit.pod   |  2 +-
 Documentation/dtas-sourceedit.pod |  2 +-
 INSTALL                           | 16 +++-------------
 3 files changed, 5 insertions(+), 15 deletions(-)

diff --git a/Documentation/dtas-sinkedit.pod b/Documentation/dtas-sinkedit.pod
index ee2d5b7..f572684 100644
--- a/Documentation/dtas-sinkedit.pod
+++ b/Documentation/dtas-sinkedit.pod
@@ -13,7 +13,7 @@ dtas-sinkedit SINKNAME
 dtas-sinkedit spawns an editor to allow editing of a sink as a YAML file.
 See L<dtas-player_protocol(7)> for details on SINKARGS.
 
-On Linux machines with the sleepy_penguin RubyGem installed, L<inotify(7)>
+On Linux machines,  L<inotify(7)>
 is used to monitor the file for changes while the text editor is running.
 Each time a user finishes saving a file, changes are committed immediately.
 This behavior may be disabled by using the -N or --no-watch command-line
diff --git a/Documentation/dtas-sourceedit.pod b/Documentation/dtas-sourceedit.pod
index ee88e8f..d8313b4 100644
--- a/Documentation/dtas-sourceedit.pod
+++ b/Documentation/dtas-sourceedit.pod
@@ -16,7 +16,7 @@ a pipe or file, it is parsed as YAML and fed to the L<dtas-player(1)> instance
 non-interactively.  This is useful for loading various profiles from the
 filesystem.
 
-On Linux machines with the sleepy_penguin RubyGem installed, L<inotify(7)>
+On Linux machines, L<inotify(7)>
 is used to monitor the file for changes while the text editor is running.
 Each time a user finishes saving a file, changes are committed immediately.
 This behavior may be disabled by using the -N or --no-watch command-line
diff --git a/INSTALL b/INSTALL
index d0b8a24..0ca2e43 100644
--- a/INSTALL
+++ b/INSTALL
@@ -16,18 +16,7 @@ Debian 7+ users can install dependencies easily:
 
     sudo apt-get install sox libsox-fmt-all mp3gain flac ruby-dev
 
-# installing dtas RubyGem on GNU/Linux (Linux kernel 2.6.32+)
-
-Be sure to have Ruby development headers and a working C compiler.
-This will pull in the sleepy_penguin RubyGems for minor
-speedups.  If you cannot be bothered to have a development
-environment, just use "gem install dtas".
-
-    sudo gem install dtas-linux
-
-This should pull in the "sleepy_penguin" RubyGems
-
-For future upgrades of dtas (upgrades to dtas-linux will be infrequent)
+For future upgrades of dtas
 
     sudo gem update dtas
 
@@ -45,7 +34,8 @@ Grab the latest tarball from our HTTPS site:
     $ cd dtas-0.17.0
     $ sudo ruby setup.rb
 
-GNU/Linux users may optionally install the "sleepy_penguin" package:
+GNU/Linux users may optionally install the "sleepy_penguin" RubyGem
+for a tiny speed improvement over the default "fiddle" RubyGem.
 
     * sleepy_penguin - https://bogomips.org/sleepy_penguin/