Fix improperly-escaped regular expression strings.
The python code in VTK for header testing and windows mangling checks has regular expressions that are not properly escaped.
Backport: release
Backport: paraview/release
Edited by Ben Boeckel
The python code in VTK for header testing and windows mangling checks has regular expressions that are not properly escaped.
Backport: release
Backport: paraview/release