is in accordance with the information provided at
ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change
Also add $FreeBSD$ to a few files to keep svn happy.
Discussed with: imp, rwatson
match text; it also doesn't warn() for files which can't be opened. Remove
global variables. Use bool. fopen(3) the files instead of freopen(3)ing stdin.
Implement -s option
Keep going if a file is not found
Append ':' to printed filenames
Include backslash in terminal characters
Make exit status dependent on a match having been found
Revise manpage accordingly
This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.
Boy, I'm glad we're not using sup anymore. This update would have been
insane otherwise.