style-guide: Avoid hyphenating "semicolon"

Author: joshtriplett

src/doc/style-guide/src/items.md

@@ -140,7 +140,7 @@ union Foo {
 
 Put the whole struct on one line if possible. Types in the parentheses should be
 separated by a comma and space with no trailing comma. No spaces around the
-parentheses or semi-colon:
+parentheses or semicolon:
 
 ```rust
 pub struct Foo(String, u8);
@@ -231,7 +231,7 @@ impl Bar
 
 `extern crate foo;`
 
-Use spaces around keywords, no spaces around the semi-colon.
+Use spaces around keywords, no spaces around the semicolon.
 
 
 ### Modules
@@ -246,7 +246,7 @@ mod foo;
 ```
 
 Use spaces around keywords and before the opening brace, no spaces around the
-semi-colon.
+semicolon.
 
 ### macro\_rules!
 

src/doc/style-guide/src/statements.md

@@ -1,7 +1,7 @@
 ### Let statements
 
 There should be spaces after the `:` and on both sides of the `=` (if they are
-present). No space before the semi-colon.
+present). No space before the semicolon.
 
 ```rust
 // A comment.
@@ -194,7 +194,7 @@ used to determine whether a let-else statement is *short*.
 ### Macros in statement position
 
 A macro use in statement position should use parentheses or square brackets as
-delimiters and should be terminated with a semi-colon. There should be no spaces
+delimiters and should be terminated with a semicolon. There should be no spaces
 between the name, `!`, the delimiters, or the `;`.
 
 ```rust
@@ -205,13 +205,13 @@ a_macro!(...);
 
 ### Expressions in statement position
 
-There should be no space between the expression and the semi-colon.
+There should be no space between the expression and the semicolon.
 
 ```
 <expr>;
 ```
 
-All expressions in statement position should be terminated with a semi-colon,
+All expressions in statement position should be terminated with a semicolon,
 unless they end with a block or are used as the value for a block.
 
 E.g.,
@@ -229,7 +229,7 @@ loop {
 }
 ```
 
-Use a semi-colon where an expression has void type, even if it could be
+Use a semicolon where an expression has void type, even if it could be
 propagated. E.g.,
 
 ```rust