Suggest cargo install --locked option, wording

CHANGELOG.md

@@ -4,8 +4,8 @@
 
 *   Add `--reply-code`, `--reply-status-code`, and `--reply-text` options to
     allow customising the SMTP reply when rejecting spam.
-*   Log a warning and do not truncate message body when `--max-message-size` is
-    misconfigured (must be ≥ `spamc` max size as documented).
+*   Log a warning and do not truncate the message body when `--max-message-size`
+    is misconfigured (must be ≥ `spamc` max size as documented).
 *   Update dependencies in `Cargo.lock`.
 
 ## 0.1.2 (2020-06-07)

Cargo.lock

@@ -212,9 +212,9 @@ dependencies = [
 
 [[package]]
 name = "unicode-width"
-version = "0.1.7"
+version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "caaa9d531767d1ff2150b9332433f32a24622147e5ebb1f26409d5da67afd479"
+checksum = "9337591893a19b88d8d87f2cec1e73fad5cdfd10e5a6f349f498ad6ea2ffb1e3"
 
 [[package]]
 name = "unicode-xid"

README.md

@@ -70,7 +70,7 @@ SpamAssassin Milter can be installed using Cargo. The program will be installed
 in the local installation’s `bin` directory as usual:
 
 ```
-cargo install spamassassin-milter
+cargo install --locked spamassassin-milter
 ```
 
 Again, if your distribution does not provide pkg-config metadata, try using the
@@ -81,8 +81,8 @@ then run the above install command with `PKG_CONFIG_PATH` set to that directory.
 
 Once installed, SpamAssassin Milter can be invoked as `spamassassin-milter`.
 `spamassassin-milter` takes one mandatory argument, namely the listening socket
-of the milter (the socket to which the MTA will connect). The socket spec can be
-in one of the formats <code>inet:<em>port</em>@<em>host</em></code> or
+of the milter (the socket to which the MTA will connect). The socket spec should
+be in one of the formats <code>inet:<em>port</em>@<em>host</em></code> or
 <code>inet6:<em>port</em>@<em>host</em></code> (for IPv6), or
 <code>unix:<em>path</em></code>, for a TCP or UNIX domain socket, respectively.
 
@@ -234,8 +234,8 @@ submitted via a SASL-authenticated channel).
 
 ## Integration with mail delivery
 
-A further component that can be useful with SpamAssassin Milter is a
-[Sieve]-capable mail delivery service. A Sieve script can for example look at
+A further component that may be useful with SpamAssassin Milter is a
+[Sieve]-capable mail delivery service. A Sieve script may for example look at
 the `X-Spam-` SpamAssassin headers of the incoming message, and take action
 based on those.
 

spamassassin-milter.8

@@ -70,7 +70,7 @@ If this option is not used, authenticated senders are trusted, and their
 messages are not processed with SpamAssassin.
 .TP
 .BR \-n ", " \-\-dry-run
-Process messages as usual, but do not take action or apply any modifications.
+Process messages normally, but do not take action or apply any modifications.
 Combined with
 .BR \-\-verbose ,
 this gives accurate insight into what would happen if run without
@@ -90,7 +90,8 @@ size configured for
 .BR spamc .
 Defaults to the
 .B spamc
-default, 512000.
+default,
+.BR 512000 .
 .TP
 .BR \-B ", " \-\-preserve-body
 Suppress rewriting of spam message body.