[PATCH 2/2] doc: Consistent spelling of nonzero

[Eric Blake <eblake@redhat.com>]

We had both 'nonzero' (since 2012) and 'non-zero' (since the
merge of extension-info in 2017); avoid the hyphen for consistency.

Signed-off-by: Eric Blake <eblake@redhat.com>
---
 doc/proto.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/doc/proto.md b/doc/proto.md
index 083317f..a4f8b21 100644
--- a/doc/proto.md
+++ b/doc/proto.md
@@ -723,9 +723,9 @@ preferred block size or export size, and SHOULD be at least 2^25
 than a power of 2.  For convenience, the server MAY advertise a
 maximum block size that is larger than the export size, although in
 that case, the client MUST treat the export size as the effective
-maximum block size (as further constrained by a non-zero offset).
+maximum block size (as further constrained by a nonzero offset).

-Where a transmission request can have a non-zero *offset* and/or
+Where a transmission request can have a nonzero *offset* and/or
 *length* (such as `NBD_CMD_READ`, `NBD_CMD_WRITE`, or `NBD_CMD_TRIM`),
 the client MUST ensure that *offset* and *length* are integer
 multiples of any advertised minimum block size, and SHOULD use integer
-- 
2.13.6