Add missing word in javadoc.

RELNOTES: None
PiperOrigin-RevId: 234198287
diff --git a/src/main/java/com/google/devtools/build/lib/actions/FileValue.java b/src/main/java/com/google/devtools/build/lib/actions/FileValue.java
index 1f0401b..73362d3 100644
--- a/src/main/java/com/google/devtools/build/lib/actions/FileValue.java
+++ b/src/main/java/com/google/devtools/build/lib/actions/FileValue.java
@@ -72,7 +72,7 @@
   }
 
   /**
-   * Returns true if this value corresponds to a file or symlink to an existing special file. If so,
+   * Returns true if this value corresponds to a special file or symlink to a special file. If so,
    * its parent directory is guaranteed to exist.
    */
   public boolean isSpecialFile() {