faf3914 * src/sly.c(sly_v5): only free the ccache principal name if the call

Authored and Committed by nalin 16 years ago
    * src/sly.c(sly_v5): only free the ccache principal name if the call
    	to retrieve it succeeded.
    * src/sly.c(_pam_krb5_sly_maybe_refresh): debug log when we decide
    	to do things.  Don't bother trying to refresh an unset KRB5CCNAME.
    
        
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