Fix some clippy errors that didn't appear on my host version of clippy.

src/parser/subscript_and_superscript.rs

@@ -175,7 +175,7 @@ fn script_alphanum<'b, 'g, 'r, 's>(
 #[cfg_attr(feature = "tracing", tracing::instrument(ret, level = "debug"))]
 fn script_alphanum_character<'s>(input: OrgSource<'s>) -> Res<OrgSource<'s>, OrgSource<'s>> {
     recognize(verify(anychar, |c| {
-        c.is_alphanumeric() || r#",.\"#.contains(*c)
+        c.is_alphanumeric() || r",.\".contains(*c)
     }))(input)
 }
 
@@ -183,7 +183,7 @@ fn script_alphanum_character<'s>(input: OrgSource<'s>) -> Res<OrgSource<'s>, Org
 fn end_script_alphanum_character<'s>(input: OrgSource<'s>) -> Res<OrgSource<'s>, OrgSource<'s>> {
     let (remaining, final_char) = recognize(verify(anychar, |c| c.is_alphanumeric()))(input)?;
     peek(tuple((
-        take_while(|c| r#",.\"#.contains(c)),
+        take_while(|c| r",.\".contains(c)),
         not(script_alphanum_character),
     )))(remaining)?;
     Ok((remaining, final_char))