Fix small mistakes in some comments.

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MOS_MIGRATED_REVID=111530554

src/main/java/com/google/devtools/build/lib/syntax/EvalUtils.java

diff --git a/src/main/java/com/google/devtools/build/lib/syntax/EvalUtils.java b/src/main/java/com/google/devtools/build/lib/syntax/EvalUtils.java
index 8c3ec362..b3b1d9e 100644
--- a/src/main/java/com/google/devtools/build/lib/syntax/EvalUtils.java
+++ b/src/main/java/com/google/devtools/build/lib/syntax/EvalUtils.java
@@ -453,7 +453,7 @@
    * Build a map of kwarg arguments from a list, removing null-s or None-s.
    *
    * @param init a series of key, value pairs (as consecutive arguments)
-   *   as in {@code optionMap(k1, v1, k2, v2, k3, v3, map)}
+   *   as in {@code optionMap(k1, v1, k2, v2, k3, v3)}
    *   where each key is a String, each value is an arbitrary Objet.
    * @return a {@code Map<String, Object>} that has all the specified entries,
    *   where key, value pairs appearing earlier have precedence,

src/main/java/com/google/devtools/build/lib/syntax/Mutability.java

diff --git a/src/main/java/com/google/devtools/build/lib/syntax/Mutability.java b/src/main/java/com/google/devtools/build/lib/syntax/Mutability.java
index 9e70584..cfe1129 100644
--- a/src/main/java/com/google/devtools/build/lib/syntax/Mutability.java
+++ b/src/main/java/com/google/devtools/build/lib/syntax/Mutability.java
@@ -36,7 +36,7 @@
  * by arbitrarily many threads.
  *
  * <p>The safe usage of a Mutability requires to always use try-with-resource style:
- * <code>try(Mutability mutability = Mutability.create(fmt, ...)) { ... }</code>
+ * <code>try (Mutability mutability = Mutability.create(fmt, ...)) { ... }</code>
  * Thus, you can create a Mutability, build an {@link Environment}, mutate that {@link Environment}
  * and create mutable objects as you evaluate in that {@link Environment}, and finally return the
  * resulting {@link Environment}, at which point the resource is closed, and the {@link Environment}