Replace static with const in two places

src/font.rs

@@ -259,7 +259,7 @@ impl Face {
         // - The slices's location is stable in memory:
         //   - We don't move the underlying vector
         //   - Nobody else can move it since we have a strong ref to the `Arc`.
-        // - The internal static lifetime is not leaked because its rewritten
+        // - The internal 'static lifetime is not leaked because its rewritten
         //   to the self-lifetime in `ttf()`.
         let slice: &'static [u8] =
             unsafe { std::slice::from_raw_parts(buffer.as_ptr(), buffer.len()) };

src/library/utility/string.rs

@@ -116,7 +116,7 @@ impl Numbering {
     }
 }
 
-static ROMANS: &'static [(&'static str, usize)] = &[
+const ROMANS: &[(&str, usize)] = &[
     ("M̅", 1000000),
     ("D̅", 500000),
     ("C̅", 100000),
@@ -139,4 +139,4 @@ static ROMANS: &'static [(&'static str, usize)] = &[
     ("I", 1),
 ];
 
-static SYMBOLS: &'static [char] = &['*', '†', '‡', '§', '‖', '¶'];
+const SYMBOLS: &[char] = &['*', '†', '‡', '§', '‖', '¶'];