Fix doc bugs, widen columns in the package list

lib/spack/docs/conf.py

@@ -65,7 +65,7 @@
 
 # Set an environment variable so that colify will print output like it would to
 # a terminal.
-os.environ['COLIFY_SIZE'] = '25x80'
+os.environ['COLIFY_SIZE'] = '25x120'
 
 #
 # Generate package list using spack command

var/spack/repos/builtin/packages/heppdt/package.py

@@ -27,7 +27,7 @@
 
 
 class Heppdt(Package):
-    """ The HepPID library contains translation methods for particle ID's
+    """The HepPID library contains translation methods for particle ID's
     to and from various Monte Carlo generators and the PDG standard
     numbering scheme. We realize that the generators adhere closely
     to the standard, but there are occasional differences."""