Cleanup: Comments and output in autogen.sh

autogen.sh

 #!/bin/sh
-# Run this to set up the build system: configure, makefiles, etc.
+# Run this to generate the configure script
 set -e
 
 srcdir=`dirname $0`
 test -n "$srcdir" && cd "$srcdir"
 
-echo "Updating build configuration files for Icecast, please wait...."
+echo "Updating build configuration files for Icecast, please wait..."
 
 autoreconf -isf