Typos.

Author: Gary Gregory

src/main/java/org/apache/commons/io/FilenameUtils.java

@@ -1534,7 +1534,7 @@ private static char toSeparator(final boolean unixSeparator) {
      * <p>
      * The wildcard matcher uses the characters '?' and '*' to represent a
      * single or multiple (zero or more) wildcard characters.
-     * This is the same as often found on Dos/Unix command lines.
+     * This is the same as often found on DOS/Unix command lines.
      * The check is case-sensitive always.
      * <pre>
      * wildcardMatch("c.txt", "*.txt")      --&gt; true
@@ -1652,7 +1652,7 @@ public static boolean wildcardMatch(final String fileName, final String wildcard
      * <p>
      * The wildcard matcher uses the characters '?' and '*' to represent a
      * single or multiple (zero or more) wildcard characters.
-     * This is the same as often found on Dos/Unix command lines.
+     * This is the same as often found on DOS/Unix command lines.
      * The check is case-sensitive on Unix and case-insensitive on Windows.
      * <pre>
      * wildcardMatch("c.txt", "*.txt")      --&gt; true

src/main/java/org/apache/commons/io/filefilter/WildcardFileFilter.java

@@ -36,7 +36,7 @@
  * <p>
  * The wildcard matcher uses the characters '?' and '*' to represent a
  * single or multiple wildcard characters.
- * This is the same as often found on Dos/Unix command lines.
+ * This is the same as often found on DOS/Unix command lines.
  * The check is case-sensitive by default.
  * See {@link FilenameUtils#wildcardMatchOnSystem(String,String)} for more information.
  * </p>

src/main/java/org/apache/commons/io/filefilter/WildcardFilter.java

@@ -36,7 +36,7 @@
  * <p>
  * The wildcard matcher uses the characters '?' and '*' to represent a
  * single or multiple wildcard characters.
- * This is the same as often found on Dos/Unix command lines.
+ * This is the same as often found on DOS/Unix command lines.
  * The extension check is case-sensitive.
  * See {@link FilenameUtils#wildcardMatch(String, String)} for more information.
  * </p>