Fix typos: threadsafe -> thread-safe

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/lang/trunk@1202710 13f79535-47bb-0310-9956-ffa450edef68

src/main/java/org/apache/commons/lang3/CharRange.java

@@ -253,7 +253,7 @@ final class CharRange implements Iterable<Character>, Serializable {
     /**
      * <p>Returns an iterator which can be used to walk through the characters described by this range.</p>
      *
-     * <p>#NotThreadSafe# the iterator is not threadsafe</p>
+     * <p>#NotThreadSafe# the iterator is not thread-safe</p>
      * @return an iterator to the chars represented by this range
      * @since 2.5
      */

src/main/java/org/apache/commons/lang3/SerializationException.java

@@ -21,7 +21,7 @@ package org.apache.commons.lang3;
  *
  * <p>The original error is wrapped within this one.</p>
  *
- * <p>#NotThreadSafe# because Throwable is not threadsafe</p>
+ * <p>#NotThreadSafe# because Throwable is not thread-safe</p>
  * @since 1.0
  * @version $Id$
  */

src/main/java/org/apache/commons/lang3/tuple/ImmutablePair.java

@@ -24,7 +24,7 @@ package org.apache.commons.lang3.tuple;
  * itself effectively becomes mutable. The class is also not {@code final}, so a subclass
  * could add undesirable behaviour.</p>
  * 
- * <p>#ThreadSafe# if both paired objects are threadsafe</p>
+ * <p>#ThreadSafe# if both paired objects are thread-safe</p>
  *
  * @param <L> the left element type
  * @param <R> the right element type