Removed supernumary backslash escapes in saveLatex man file.

At present, the example in the text help page returned by `?saveLatex` doesn't run (at least not for me). I reinstalled the package with the changes above, to check that it fixed the problem, and (again, at least for me) it does.
Merge pull request #53 from JoshOBrien/patch-1

Removed supernumary backslash escapes in saveLatex man file.