Naming Convention: Capitalization vs. Hyphenating



Does anybody know why Tcl prefers capitalization for naming procedures?

see: http://www.tcl.tk/cgi-bin/tct/tip/352.html
>

In multi-word names, the first letter of each trailing word is
capitalized. Do not use underscores or dashes as separators between the
words of a name.

proc get-some-information {}

vs

proc getSomeInformation {}

.