Bug 6940

Description of problem:
tkgate (as an example) fails because tcl cannot find a usable init.tcl; 
It crashes with the error below:

!++++++++++++++++++++++++++++++++
Tcl_Init Error in tkgate:
Can't find a usable init.tcl in the following directories:
    /usr/share/tcl8.5 /lib/tcl8.5 /lib/tcl8.5 /library /library /tcl8.5.12/library /tcl8.5.12/library

/usr/share/tcl8.5/init.tcl: version conflict for package "Tcl": have 8.5.12, need exactly 8.5.11
version conflict for package "Tcl": have 8.5.12, need exactly 8.5.11
    while executing
"package require -exact Tcl 8.5.11"
    (file "/usr/share/tcl8.5/init.tcl" line 18)
    invoked from within
"source /usr/share/tcl8.5/init.tcl"
    ("uplevel" body line 1)
    invoked from within
"uplevel #0 [list source $tclfile]"


This probably means that Tcl wasn't installed properly.
!++++++++++++++++++++++++++++++++

Line 18 of /usr/share/tcl8.5/init.tcl contains:
  package require --exact Tcl 8.5.11
even if the installed package is tcl-8.5.12.

Manually changing line 18 to 
  package require --exact Tcl 8.5.12
solve the problem, but that's just a workaround.

How reproducible:
Always reproducible when trying to launch applications like tkgate or expect.

Steps to Reproduce:
1. install tkgate (or expect) using urpmi tkgate (or urpmi expect)
2. launch tkgate (or expect)
3. experience this issue