Merge branch 'release/v1.0.0'v1.0.0

* release/v1.0.0:
  Add VERSION
  More refactoring and rearranging, commenting
  Switch to tab indentation
  Refactor usage function and output
  Rename to README.md

1 files changed, 5 insertions, 4 deletions

diff --git a/crypt.h b/crypt.h
index 2b8145d..6612e01 100644
--- a/crypt.h
+++ b/crypt.h
@@ -1,8 +1,9 @@
 #define _XOPEN_SOURCE
-#include <ctype.h>
+#include <errno.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include <unistd.h>
+#include <string.h> /* strerror(3) */
+#include <unistd.h> /* crypt(3) */
 
-#define OPTSTRING "h"
-#define USAGE "USAGE: crypt KEY SALT"
+void usage(FILE *, int);
+void error(char *);