Merge pull request #2895 from topecongiro/issue-2787

Fix parsing '#'-hiding of rustdoc

.travis.yml

@@ -45,8 +45,6 @@ matrix:
     - env: INTEGRATION=rust-clippy
     # Build failure
     - env: INTEGRATION=rust-semverver
-    # See: https://github.com/rust-lang-nursery/rustfmt/issues/2787
-    - env: INTEGRATION=stdsimd
 
 script:
   - |

src/comment.rs

@@ -500,7 +500,7 @@ fn rewrite_comment_inner(
 const RUSTFMT_CUSTOM_COMMENT_PREFIX: &str = "//#### ";
 
 fn hide_sharp_behind_comment<'a>(s: &'a str) -> Cow<'a, str> {
-    if s.trim_left().starts_with('#') {
+    if s.trim_left().starts_with("# ") {
         Cow::from(format!("{}{}", RUSTFMT_CUSTOM_COMMENT_PREFIX, s))
     } else {
         Cow::from(s)