octave: rename executable Octave to octave

var/spack/repos/builtin/packages/octave-splines/package.py

@@ -36,7 +36,7 @@ class OctaveSplines(Package):
     extends('octave@3.6.0:')
 
     def install(self, spec, prefix):
-        Octave('--quiet',
+        octave('--quiet',
                '--norc',
                '--built-in-docstrings-file=/dev/null',
                '--texi-macros-file=/dev/null',

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

@@ -223,7 +223,7 @@ def setup_dependent_package(self, module, ext_spec):
         """Called before Octave modules' install() methods.
 
         In most cases, extensions will only need to have one line:
-            Octave('--eval', 'pkg install %s' % self.stage.archive_file)
+            octave('--eval', 'pkg install %s' % self.stage.archive_file)
         """
         # Octave extension builds can have a global Octave executable function
-        module.Octave = Executable(join_path(self.spec.prefix.bin, 'octave'))
+        module.octave = Executable(join_path(self.spec.prefix.bin, 'octave'))