[fix] Fix repeatability tests

src/zc/buildout/tests/repeatable.txt

@@ -194,6 +194,7 @@ versions:
     ... parts = foo
     ... find-links = %s
     ... allow-picked-versions = false
+    ... newest = false
     ...
     ... [versions]
     ... eggs = 2.2
@@ -270,6 +271,8 @@ version number:
     >>> setuptools_version = pkg_resources.working_set.find(req).version
     >>> req = pkg_resources.Requirement.parse('pip')
     >>> pip_version = pkg_resources.working_set.find(req).version
+    >>> req = pkg_resources.Requirement.parse('wheel')
+    >>> wheel_version = pkg_resources.working_set.find(req).version
 
 If you set the ``show-picked-versions`` option, buildout will print
 versions it picked at the end of its run:
@@ -282,10 +285,14 @@ versions it picked at the end of its run:
     ... show-picked-versions = true
     ...
     ... [versions]
+    ... pip = %s
+    ... setuptools = %s
+    ... wheel = %s
     ...
     ... [foo]
     ... recipe = spam
-    ... ''' % join('recipe', 'dist'))
+    ... ''' % (join('recipe', 'dist'),
+    ...        pip_version, setuptools_version, wheel_version))
     >>> print_(system(buildout), end='') # doctest: +ELLIPSIS
     Updating foo.
     recipe v2
@@ -306,11 +313,13 @@ When everything is pinned, no output is generated:
     ... [versions]
     ... pip = %s
     ... setuptools = %s
+    ... wheel = %s
     ... spam = 2
     ...
     ... [foo]
     ... recipe = spam
-    ... ''' % (join('recipe', 'dist'), pip_version, setuptools_version))
+    ... ''' % (join('recipe', 'dist'),
+    ...        pip_version, setuptools_version, wheel_version))
     >>> print_(system(buildout), end='') # doctest: +ELLIPSIS
     Updating foo.
     recipe v2
@@ -331,11 +340,13 @@ and case differences won't impact the pinning:
     ... [versions]
     ... pip = %s
     ... setuptools = %s
+    ... wheel = %s
     ... Spam = 2
     ...
     ... [foo]
     ... recipe = spam
-    ... ''' % (join('recipe', 'dist'), pip_version, setuptools_version))
+    ... ''' % (join('recipe', 'dist'),
+    ...        pip_version, setuptools_version, wheel_version))
     >>> print_(system(buildout), end='') # doctest: +ELLIPSIS
     Updating foo.
     recipe v2
@@ -349,8 +360,9 @@ extending from that versions file:
     ... [versions]
     ... pip = %s
     ... setuptools = %s
+    ... wheel = %s
     ... spam = 2
-    ... ''' % (pip_version, setuptools_version))
+    ... ''' % (pip_version, setuptools_version, wheel_version))
     >>> write('buildout.cfg',
     ... '''
     ... [buildout]
@@ -375,7 +387,8 @@ at the end.
     ... [versions]
     ... pip = %s
     ... setuptools = %s
-    ... ''' % (pip_version, setuptools_version))
+    ... wheel = %s
+    ... ''' % (pip_version, setuptools_version, wheel_version))
     >>> write('buildout.cfg',
     ... '''
     ... [buildout]
@@ -420,7 +433,8 @@ printing them to the console):
     ... [versions]
     ... pip = %s
     ... setuptools = %s
-    ... ''' % (pip_version, setuptools_version))
+    ... wheel = %s
+    ... ''' % (pip_version, setuptools_version, wheel_version))
     >>> write('buildout.cfg',
     ... '''
     ... [buildout]