PR review: parenthetical as part of sentence

Co-authored-by: Yuki Okushi <jtitor@2k36.org>

src/ffi.md

@@ -723,10 +723,10 @@ No `transmute` required!
 It’s important to be mindful of unwinding when working with FFI. Each
 non-`Rust` ABI comes in two variants, one with `-unwind` and one without. If
 you expect Rust `panic`s or foreign (e.g. C++) exceptions to cross an FFI
-boundary, that boundary must use the appropriate `-unwind` ABI string. (Note
+boundary, that boundary must use the appropriate `-unwind` ABI string (note
 that compiling with `panic=abort` will still cause `panic!` to immediately
 abort the process, regardless of which ABI is specified by the function that
-`panic`s.)
+`panic`s).
 
 Conversely, if you do not expect unwinding to cross an ABI boundary, use one of
 the non-`unwind` ABI strings (other than `Rust`, which always permits