Fix some typos in comments.

Also, tell the "typos" tool to ignore Cargo.lock.

.typos.toml

@@ -1,9 +1,9 @@
 
 [files]
-extend-exclude = [ "arti-corpora", "testdata", "fallback_dirs.inc" ]
+extend-exclude = [ "Cargo.lock", "arti-corpora", "testdata", "fallback_dirs.inc" ]
 
 
 [default.extend-identifiers]
 
-# This shows up in sere crates.
-ser = "ser"
+# This shows up in serde crates.
+ser = "ser"

crates/tor-client/src/address.rs

@@ -287,7 +287,7 @@ impl DangerouslyIntoTorAddr for SocketAddrV6 {
 
 /// Check whether `hostname` is a valid hostname or not.
 ///
-/// (Note that IPv6 addreses don't follow these rules.)
+/// (Note that IPv6 addresses don't follow these rules.)
 ///
 /// TODO: Check whether the rules given here are in fact the same rules
 /// as Tor follows, and whether they conform to anything.

crates/tor-dirmgr/src/err.rs

@@ -69,7 +69,7 @@ pub enum Error {
     /// An error given by the checkable crate.
     #[error("checkable error: {0}")]
     SignatureError(#[from] signature::Error),
-    /// An IO error occured while manipulating storage on disk.
+    /// An IO error occurred while manipulating storage on disk.
     #[error("IO error: {0}")]
     IOError(#[from] std::io::Error),
 }

maint/cargo_audit.sh

@@ -15,7 +15,7 @@ IGNORE=(
     # `localtime_r()`, which is not thread-safe if anybody calls
     # `setenv()`.
     #
-    # This is concerning!  What makes it not disasterous is:
+    # This is concerning!  What makes it not disastrous is:
     #  * We don't use chrono for any local times in Arti: only Utc.
     #  * We don't modify the environment.
     #