Merge #813: Fix typos: occurrence, occurred, restricted

e4bdf22 Update context.rs (leopardracer)
70876ab Update key.rs (leopardracer)
a380044 Update error.rs (leopardracer)

Pull request description:

  This PR fixes several typos across the codebase:

  - src/descriptor/key.rs: Fix "occurence" -> "occurrence"
  - src/expression/error.rs: Fix "occured" -> "occurred"
  - src/miniscript/context.rs: Fix "restrcted" -> "restricted" (in two places)

  These are simple spelling corrections that don't affect functionality.

ACKs for top commit:
  apoelstra:
    ACK e4bdf22; successfully ran local tests; you are correct about "occurrence"; I had to look it up :)

Tree-SHA512: 0868de782d6bd9b2ca204f56aef425d1060f262203d416e85ab05e2705b8d24a917057fd3f05edb1746014cf0c339eed423b242a8554762489a0159eff7e3549

Author: apoelstra

src/descriptor/key.rs

@@ -1025,7 +1025,7 @@ fn parse_xkey_deriv<Key>(
                 // BIP389 defines a new step in the derivation path. This step contains two or more
                 // derivation indexes in the form '<1;2;3';4h;5H;6>'.
                 if p.starts_with('<') && p.ends_with('>') {
-                    // There may only be one occurence of this step.
+                    // There may only be one occurrence of this step.
                     if multipath {
                         return Some(Err(DescriptorKeyParseError::MalformedKeyData(
                             MalformedKeyDataKind::MultipleDerivationPathIndexSteps,

src/expression/error.rs

@@ -159,7 +159,7 @@ impl fmt::Display for ParseTreeError {
             ParseTreeError::MultipleSeparators { separator, pos } => {
                 write!(
                     f,
-                    "separator '{}' occured multiple times (second time at position {})",
+                    "separator '{}' occurred multiple times (second time at position {})",
                     separator, pos
                 )
             }

src/miniscript/context.rs

@@ -200,7 +200,7 @@ where
     /// 3600 or number of stack elements are more than 100.
     fn check_witness(_witness: &[Vec<u8>]) -> Result<(), ScriptContextError> {
         // Only really need to do this for segwitv0 and legacy
-        // Bare is already restrcited by standardness rules
+        // Bare is already restricted by standardness rules
         // and would reach these limits.
         Ok(())
     }
@@ -895,7 +895,7 @@ impl ScriptContext for NoChecks {
 
     fn check_witness(_witness: &[Vec<u8>]) -> Result<(), ScriptContextError> {
         // Only really need to do this for segwitv0 and legacy
-        // Bare is already restrcited by standardness rules
+        // Bare is already restricted by standardness rules
         // and would reach these limits.
         Ok(())
     }