projtool.pl: add missing nested braces
The "redo" statement requires an actual block; a bunch of statements
grouped in a pair of braces ('{'...'}') as part of a conditional
does not qualify.
Add the necessary extra pair of braces to make the bodies of these
conditionals that use `redo` actually be able to `redo`.
This was previously handled properly, but when some new options
were added the extra pair of braces was overlooked for them.
Add them now to correct the problem.
Signed-off-by: Kyle J. McKay <mackyle@gmail.com>