wrap suffix paragraph at 80 chars

text/2603-rust-symbol-name-mangling-v0.md

@@ -808,14 +808,16 @@ like regular identifiers and need no further special handling.
 
 ### Vendor-specific suffix
 
-Similarly to the [Itanium C++ ABI mangling scheme][itanium-mangling-structure], a symbol name
-containing a period (`.`) or a dollar sign (`$`) represents a vendor-specific version of the symbol.
-There are no restrictions on the characters following the period or dollar sign.
-
-This can happen in practice when locally unique names needed to become globally unique. For example,
-LLVM can append a `.llvm.<numbers>` suffix during LTO to ensure a unique name, and `$` can be used
-for thread-local data on Mach-O. In these situations it's generally fine to ignore the suffix: the
-suffixed name has the same semantics as the original.
+Similarly to the [Itanium C++ ABI mangling scheme][itanium-mangling-structure],
+a symbol name containing a period (`.`) or a dollar sign (`$`) represents a
+vendor-specific version of the symbol. There are no restrictions on the
+characters following the period or dollar sign.
+
+This can happen in practice when locally unique names needed to become globally
+unique. For example, LLVM can append a `.llvm.<numbers>` suffix during LTO to
+ensure a unique name, and `$` can be used for thread-local data on Mach-O. In
+these situations it's generally fine to ignore the suffix: the suffixed name has
+the same semantics as the original.
 
 [itanium-mangling-structure]: https://itanium-cxx-abi.github.io/cxx-abi/abi.html#mangling-structure