Fix the build.

Change-Id: I82210cb2d41f532583f83ea17e6f2d8d49280a30
diff --git a/voip/java/android/net/sip/SimpleSessionDescription.java b/voip/java/android/net/sip/SimpleSessionDescription.java
index 733a5f6..29166dc 100644
--- a/voip/java/android/net/sip/SimpleSessionDescription.java
+++ b/voip/java/android/net/sip/SimpleSessionDescription.java
@@ -343,7 +343,7 @@
         }
 
         /**
-         * Sets a RTP payload type and its {@code rtpmap} and {@fmtp}
+         * Sets a RTP payload type and its {@code rtpmap} and {@code fmtp}
          * attributes. If any of the attributes is {@code null}, the
          * corresponding field will be removed. See
          * {@link SimpleSessionDescription} for an example of its usage.