garbage added to solid name

[hramrach]

Version: 3.2.0

Repeatedly opening and saving the same file extends solid name ad absurdum.

The original model name is obtained as binary string, and instead of printing as is it's converted with repr.

@@ -1,4 +1,4 @@
-solid b"b'OpenSCAD_Model'"
+solid b'b'b\'b"b\\\'OpenSCAD_Model\\\'"\'''
facet normal 0.000003 2.012162 -3.765519
outer loop
vertex -21.940001 23.424000 0.114181
@@ -77069,4 +77069,4 @@ facet normal 0.000000 26.125145 0.000000
vertex 9.940000 -34.549999 32.525501
endloop
endfacet
-endsolid b"b'OpenSCAD_Model'"
+endsolid b'b'b\'b"b\\\'OpenSCAD_Model\\\'"\'''

[hramrach]

p('solid {}'.format(str(name,errors='replace')), file=fh) seems to work correctly