Adjusted tests for version update

src/zc/buildout/buildout.txt

@@ -3104,7 +3104,7 @@ or paths to use::
     >>> print_(system(buildout + ' -csetup.cfg init demo other ./src'), end='')
     Creating '/sample-bootstrapped/setup.cfg'.
     Creating directory '/sample-bootstrapped/develop-eggs'.
-    Getting distribution for 'zc.recipe.egg>=2.0.0a3'.
+    Getting distribution for 'zc.recipe.egg>=2.0.6'.
     Got zc.recipe.egg
     Installing py.
     Getting distribution for 'demo'.

src/zc/buildout/tests.py

@@ -3031,14 +3031,14 @@ def want_new_zcrecipeegg():
     ... eggs = demo
     ... ''')
     >>> print_(system(join('bin', 'buildout')), end='') # doctest: +ELLIPSIS
-    Getting distribution for 'zc.recipe.egg<2dev,>=2.0.0a3'...
+    Getting distribution for 'zc.recipe.egg<2dev,>=2.0.6'...
     While:
       Installing.
       Getting section egg.
       Initializing section egg.
       Installing recipe zc.recipe.egg <2dev.
-      Getting distribution for 'zc.recipe.egg<2dev,>=2.0.0a3'.
-    Error: Couldn't find a distribution for 'zc.recipe.egg<2dev,>=2.0.0a3'.
+      Getting distribution for 'zc.recipe.egg<2dev,>=2.0.6'.
+    Error: Couldn't find a distribution for 'zc.recipe.egg<2dev,>=2.0.6'.
     """
 
 def macro_inheritance_bug():