This causes problems when the string is passed as a parameter to a
Windows program that accepts only backslash as a path separator.
For example, fix() appears to pass the tempfile() string to the
editor program and my preferred editor (KEDIT) does not accept it:
I get an error message "Invalid fileid" from KEDIT and a warning from
fix() "Warning message: editor ran but returned error status in:
edit(name, file, title, editor)". I can work around this with
fix(object,file=normalizePath(tempfile())), but I would rather have
tempfile() return a normalized path in the first place.
system i386, mingw32
svn rev 36812