coccicheck: replace --very-quiet with --quiet when debugging
When debugging (using --profile or --show-trying) you want to
avoid supressing output, use --quiet instead. While at it, extend
documentation for SPFLAGS use.
v4: expand Documentation/coccinelle.txt
v3: rebased, resolve conflicts, expand Documentation/coccinelle.txt
v2: use egrep instead of the *"=--option"* check, this doesn't work for
disjunctions.
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org> Acked-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Michal Marek <mmarek@suse.com>