Nikolay Sivov (@nsivov) commented about dlls/shlwapi/string.c:
+/*************************************************************************
- StrFormatByteSizeEx [SHLWAPI.@]
- Create a string containing an abbreviated by count with rounding options
- PARAMS
- dwBytes [I] Byte size to format
- flags [I] Enumeration values specifying whether to round or truncate
- lpszDest [I] Destination for the formatted string
- cchMax [I] Size of lpszDest
- RETURNS
- S_OK if conversion is successful otherwise returns a HRESULT error code.
- */
Just the function name is fine for the header.