K 10 svn:author V 8 jmallett K 8 svn:date V 27 2004-03-14T06:43:34.000000Z K 7 svn:log V 321 Add multiple inclusion guards. Mostly this is for extern.h, which was included twice by lprint.c, which included both finger.h and extern.h. finger.h, in turn, includes extern.h. The redundant include of extern.h was removed from lprint.c, as part of this change, but the include guards were added anyway out of spite. END