Merge branch 'pkoppenb-master-patch-70177' into 'master'

Clarify that CHI2DOF and CHI2 are track and vertex chi2 cuts

See merge request !2436

Phys/FunctorCore/python/Functors/__init__.py

@@ -37,9 +37,11 @@ ISMUON = Functor('ISMUON', "Track::IsMuon", "TrackLike.h", "IsMuon.")
 NDOF = Functor('NDOF', 'Track::nDoF', 'TrackLike.h',
                'Number of degrees of freedom [for chi2]')
 QOVERP = Functor('QOVERP', 'Track::QoverP', 'TrackLike.h', 'q/p')
-CHI2DOF = Functor('CHI2DOF', "Track::Chi2PerDoF", "TrackLike.h",
-                  "chi^2 per degree of freedom.")
-CHI2 = Functor('CHI2', "Track::Chi2", "TrackLike.h", "chi^2.")
+CHI2DOF = Functor(
+    'CHI2DOF', "Track::Chi2PerDoF", "TrackLike.h",
+    "Vertex or track chi^2 per degree of freedom (works for both).")
+CHI2 = Functor('CHI2', "Track::Chi2", "TrackLike.h",
+               "Vertex or track chi^2 (works for both).")
 GHOSTPROB = Functor('GHOSTPROB', "Track::GhostProbability", "TrackLike.h",
                     "Ghost probability.")
 CLOSESTTOBEAM = Functor(