trunk: Updating irstlm toolkit's svn address

git-svn-id: https://svn.code.sf.net/p/kaldi/code/trunk@3364 5e6a8d80-dfce-4ca6-a32a-6e07a63d50c8

tools/INSTALL

@@ -113,7 +113,7 @@ This is not needed for the basic system builds (RM has its own
 non-ARPA LM, and WSJ comes with LMs).  So installing this may be
 left till later, if you are in a hurry.
 
-svn co https://irstlm.svn.sourceforge.net/svnroot/irstlm/trunk irstlm
+svn co https://svn.code.sf.net/p/irstlm/code/trunk irstlm
 cd irstlm
 [
 if your aclocal and automake are too old, you may want to