Add missing @since tags

This was missed in c353645a09b6

Change-Id: I4ae5b13bd7bfd09c113d91ece727a26706660826

org.eclipse.jgit/src/org/eclipse/jgit/revwalk/FooterLine.java

diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/revwalk/FooterLine.java b/org.eclipse.jgit/src/org/eclipse/jgit/revwalk/FooterLine.java
index eeaccc6..2d396d5 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/revwalk/FooterLine.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/revwalk/FooterLine.java
@@ -56,6 +56,7 @@ public final class FooterLine {
 	 *            the message to extract footers from.
 	 * @return ordered list of footer lines; empty list if no footers found.
 	 * @see RevCommit#getFooterLines()
+	 * @since 6.7
 	 */
 	public static List<FooterLine> fromMessage(
 			String str) {
@@ -69,6 +70,7 @@ public static List<FooterLine> fromMessage(
 	 *            the raw message to extract footers from.
 	 * @return ordered list of footer lines; empty list if no footers found.
 	 * @see RevCommit#getFooterLines()
+	 * @since 6.7
 	 */
 	public static List<FooterLine> fromMessage(
 			byte[] raw) {
@@ -122,6 +124,7 @@ public static List<FooterLine> fromMessage(
 	 *         footer appeared more than once. Empty list if no footers appear
 	 *         with the specified key, or there are no footers at all.
 	 * @see #fromMessage
+	 * @since 6.7
 	 */
 	public static List<String> getValues(List<FooterLine> footers, String keyName) {
 		return getValues(footers, new FooterKey(keyName));
@@ -139,6 +142,7 @@ public static List<String> getValues(List<FooterLine> footers, String keyName) {
 	 *         footer appeared more than once. Empty list if no footers appear
 	 *         with the specified key, or there are no footers at all.
 	 * @see #fromMessage
+	 * @since 6.7
 	 */
 	public static List<String> getValues(List<FooterLine> footers, FooterKey key) {
 		if (footers.isEmpty())

org.eclipse.jgit/src/org/eclipse/jgit/util/RawParseUtils.java

diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/util/RawParseUtils.java b/org.eclipse.jgit/src/org/eclipse/jgit/util/RawParseUtils.java
index 1c98336..00e55f5 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/util/RawParseUtils.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/util/RawParseUtils.java
@@ -875,8 +875,9 @@ public static Charset parseEncoding(byte[] b) {
 	 * @param buffer
 	 *            buffer to scan.
 	 * @return the Java character set representation. Never null. Default to
-	 *            UTF-8.
+	 *         UTF-8.
 	 * @see #parseEncoding(byte[])
+	 * @since 6.7
 	 */
 	public static Charset guessEncoding(byte[] buffer) {
 		try {