{ and } in examples get confused in help (PR#323)

[ripley@stats.ox.ac.uk]

Take a look at ?image, or the html version:

     image(z, axes=F, main="Math can be beautiful ...",
           xlab=expression(cos(r^2) * e^{-r/6{))
...
     image(z, axes=F, main="Math can be beautiful ...",
           xlab=expression(cos(r^2) * e^}-r/6}))


The {} {} pairing has become {{ }}.  Looks like a bug in the 
marking/unmarking code in Rdconvlib.pl


--please do not edit the information below--

Version:
 platform = sparc-sun-solaris2.6
 arch = sparc
 os = solaris2.6
 system = sparc, solaris2.6
 status = Release
 major = 0
 minor = 65.1
 year = 1999
 month = October
 day = 07
 language = R

Search Path:
 .GlobalEnv, Autoloads, package:base

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