diff --git a/core/src/main/java/com/google/errorprone/bugpatterns/UnnecessaryParentheses.java b/core/src/main/java/com/google/errorprone/bugpatterns/UnnecessaryParentheses.java
index <HASH>..<HASH> 100644
--- a/core/src/main/java/com/google/errorprone/bugpatterns/UnnecessaryParentheses.java
+++ b/core/src/main/java/com/google/errorprone/bugpatterns/UnnecessaryParentheses.java
@@ -35,7 +35,9 @@ import com.sun.tools.javac.tree.JCTree;
 /** @author cushon@google.com (Liam Miller-Cushon) */
 @BugPattern(
     name = "UnnecessaryParentheses",
-    summary = "Unnecessary use of grouping parentheses",
+    summary =
+        "These grouping parentheses are unnecessary; it is unlikely the code will"
+            + " be misinterpreted without them",
     severity = WARNING,
     providesFix = REQUIRES_HUMAN_ATTENTION,
     tags = STYLE)
Improve UnnecessaryParenentheses docs

Make it clear it isn't suggesting removing all parens, just the ones that
don't help readability.

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Created by MOE: <URL>