r.report seg faults on small page width values

[epatton]

r.report seg faults when passed small values of page width values. From the NC test dataset, the elevation raster creates the seg fault on 23 characters, and an infinite loop with 24 characters:

r.report -h map=elevation pw=23
 100%
+---------------------+
|Category Information |
|                    #|description                                  |
|---------------------|
|104.966573-105.361675|from  to �
'@�?@�h0�h��h`�h@�h�����'�Yc4@/�~F�'@4@���V
      Al
        A@k#A�K#A�?�����Segmentation fault

gdb backtrace:

gdb -q r.report
Reading symbols from /usr/local/grass-6.5.svn/bin/r.report...done.
(gdb) run map=elevation pw=23
# lots of binary gibberish printed, then:
Program received signal SIGSEGV, Segmentation fault.
print_label (s=0x629000 <Address 0x629000 out of bounds>, len=<value optimized out>, pflag=1, spacing=0, dot=<value optimized out>) at label.c:46
46		    putchar(*s);
(gdb)

~ Eric.