Make it easier to see what package the 'was:' line refers to.

z3c/checkversions/base.py

@@ -118,7 +118,7 @@ def check(self, level=0):
                 if self.incremental == True:
                     self.incremental = 'stop'
                 if self.verbose:
-                    print("# was: %s" % version)
+                    print("# was: %s=%s" % (name, version))
                 print("%s=%s" % (name, new_dist.version))
             elif self.verbose:
                 print("%s=%s" % (name, version))

z3c/checkversions/buildout.txt

@@ -57,9 +57,9 @@ The verbose mode gives the current and previous versions
 >>> checker = buildout.Checker(filename=buildout_path, verbose=True)
 >>> checker.check(level=2)
 # Checking buildout file ...
-# was: 3.0.0
+# was: zope.component=3.0.0
 zope.component=3.0.3
-# was: 3.4.0
+# was: zope.interface=3.4.0
 zope.interface=3.4.1
 
 The old comments are removed:
@@ -70,17 +70,17 @@ The old comments are removed:
 ... index = %s
 ... versions = versions
 ... [versions]
-... # was: 3.4.0
+... # was: zope.interface=3.4.0
 ... zope.interface = 3.4.1
 ... zope.component = 3.0.3
 ... """ % testindex)
 
 >>> checker = buildout.Checker(filename=buildout_path, verbose=True)
 >>> checker.check()
 # Checking buildout file ...
-# was: 3.0.3
+# was: zope.component=3.0.3
 zope.component=3.9.4
-# was: 3.4.1
+# was: zope.interface=3.4.1
 zope.interface=3.6.1
 
 We can provide a blacklist file, containing versions to not suggest.
@@ -95,9 +95,9 @@ This file may come from a buildbot remembering failures.
 ...                            blacklist=blacklist_path)
 >>> checker.check()
 # Checking buildout file ...
-# was: 3.0.3
+# was: zope.component=3.0.3
 zope.component=3.9.2
-# was: 3.4.1
+# was: zope.interface=3.4.1
 zope.interface=3.6.1
 
 We can let the checker to suggest only one new package. This should be used to
@@ -109,7 +109,7 @@ test a just single new package against a set of other packages.
 ...                            blacklist=blacklist_path)
 >>> checker.check()
 # Checking buildout file ...
-# was: 3.0.3
+# was: zope.component=3.0.3
 zope.component=3.9.2
 zope.interface=3.4.1
 
@@ -153,7 +153,7 @@ pinned.
 >>> checker.check()
 # Checking buildout file ...
 distribute=
-# was: 3.0.0
+# was: zope.component=3.0.0
 zope.component=3.9.4
 
 >>> os.remove(buildout_path)