- use a lock instead of a thread in once
avoids deadlock in recursive once calls
- implement os.Setenv
- remove "export" from some scripts
- remove _ from names in time package
- fix time test for non-MTV machines
R=r
DELTA=265 (87 added, 58 deleted, 120 changed)
OCL=25057
CL=25057
* 1. all statements and declarations are terminated by semicolons
* 2. semicolons can be omitted at top level.
* 3. semicolons can be omitted before and after the closing ) or }
* on a list of statements or declarations.
/home/rsc/bin/addsemi and then diff+tweak.
R=r,gri
OCL=16620
CL=16643
