Avoid calling out to external programs when cleaning or printing help. We either don't need to call them, or we might not know where they are.
Avoid calling out to external programs when cleaning or printing help.
We either don't need to call them, or we might not know where they are.

* SConstruct:
  (CALLOUT_OKAY): new flag to determine when calling out is allowed.
    then use it where needed.
  (gssapi): only reset to krb5-cnofig if that file exists

TommyU/serf,justinweb/serf,idomon/serf,TommyU/serf,Manouchehri/serf,sworda/serf,Manouchehri/serf,TommyU/serf,blueszhangsh/serf,TommyU/serf,idomon/serf,liuzongquan/serf,muthusuba/serf,blueszhangsh/serf,Manouchehri/serf,justinweb/serf,idomon/serf,krime/serf,liuzongquan/serf,sworda/serf,blueszhangsh/serf,wzugang/serf,krime/serf,justinweb/serf,krime/serf,wzugang/serf,liuzongquan/serf,blueszhangsh/serf,justinweb/serf,liuzongquan/serf,muthusuba/serf,wzugang/serf,wzugang/serf,idomon/serf,sworda/serf,muthusuba/serf,Manouchehri/serf,krime/serf,muthusuba/serf,sworda/serf