[Rd] possible agrep bug; R 2.9.1, Mac OS X 10.5 (PR#13789)

[e.leoni at gmail.com]

Same behavior was noted on R 2.9.0 OS X and WIndows.

> t(sapply(seq(0.01, .99, length=20), function(x) c(x, length(agrep("Staatssekretar im Bundeskanzleramt","Bundeskanzler",max.distance=x)))))
 [1,] 0.01000000    0
 [2,] 0.06157895    0
 [3,] 0.11315789    0
 [4,] 0.16473684    0
 [5,] 0.21631579    0
 [6,] 0.26789474    0
 [7,] 0.31947368    0
 [8,] 0.37105263    0
 [9,] 0.42263158    0
[10,] 0.47421053    0
[11,] 0.52578947    0
[12,] 0.57736842    0
[13,] 0.62894737    1
[14,] 0.68052632    1
[15,] 0.73210526    1
[16,] 0.78368421    1
[17,] 0.83526316    1
[18,] 0.88684211    0   ## NOTE that there is a match reported with a
threshold _lower_ than this!
[19,] 0.93842105    0
[20,] 0.99000000    1

--please do not edit the information below--

Version:
 platform = i386-apple-darwin8.11.1
 arch = i386
 os = darwin8.11.1
 system = i386, darwin8.11.1
 status =
 major = 2
 minor = 9.1
 year = 2009
 month = 06
 day = 26
 svn rev = 48839
 language = R
 version.string = R version 2.9.1 (2009-06-26)

Locale:
en_US.UTF-8/en_US.UTF-8/C/C/en_US.UTF-8/en_US.UTF-8

Search Path:
 .GlobalEnv, package:stats, package:graphics, package:grDevices,
package:utils, package:datasets, package:methods, Autoloads,
package:base