bug#16723: Bug using -A and -v at least in 2.14 of grep !?

[Paul Eggert]

Sorry, I don't see a bug here.  grep -v PAT matches all lines that do 
not match PAT.  If a line doesn't contain the word 'stylesheet', 'grep 
-v stylesheet' will match the line even if it is adjacent to a line that 
does contain 'stylesheet', and -A 2 will then print the adjacent line.