Update doc comment and CHANGELOG

CHANGELOG.md

@@ -95,3 +95,13 @@
 ### Changed
 
  - Bumped the version number in order to upload an updated README to crates.io.
+
+## [0.7.2]
+
+### Added
+
+ - Method `abort_file` - removes the current or most recently-finished file from the archive.
+ 
+### Fixed
+
+ - Fixed a bug where a file could remain open for writing after validations failed.

src/write.rs

@@ -496,7 +496,8 @@ impl<W: Write + Seek> ZipWriter<W> {
         Ok(())
     }
 
-    /// Removes the file currently being written from the archive.
+    /// Removes the file currently being written from the archive if there is one, or else removes
+    /// the file most recently written.
     pub fn abort_file(&mut self) -> ZipResult<()> {
         let last_file = self.files.pop().ok_or(ZipError::FileNotFound)?;
         self.files_by_name.remove(&last_file.file_name);