* Version 5.0.1.
+ * src/copy.c (struct F_triple) [name]: Remove const attribute.
+ (triple_free): Don't apply cast to argument of free.
+ (seen_file): Add cast here instead.
+
+ * src/cp-hash.c (struct Src_to_dest) [name]: Remove const attribute.
+ (src_to_dest_free): Don't apply cast to argument of free.
+
+ * src/sort.c (zaptemp): Don't apply cast to argument of free.
+ * src/pr.c (init_fps, init_store_cols): Likewise.
+ * src/join.c (delseq, freeline): Likewise.
+ * src/expr.c (OLD): Likewise.
+ * src/sort.c (sort): Likewise.
+
+ * src/tail.c: Include "quote.h".
+ Use quote in diagnostics. Change many error format strings
+ from just `%s' to e.g., `error reading %s'.
+ (pipe_lines): Change type of parameter, n_lines, to uintmax_t.
+ Rewrite newline-counting loop to use memchr.
+
* src/head.c (elide_tail_lines_pipe): Use `if', not assert.
Now that assert is no longer used, don't include <assert.h>.