Add fix-imports-only to help text.

MOE_MIGRATED_REVID=127887959
diff --git a/core/src/main/java/com/google/googlejavaformat/java/UsageException.java b/core/src/main/java/com/google/googlejavaformat/java/UsageException.java
index e695d80..a20c934 100644
--- a/core/src/main/java/com/google/googlejavaformat/java/UsageException.java
+++ b/core/src/main/java/com/google/googlejavaformat/java/UsageException.java
@@ -51,6 +51,9 @@
     "    --version, -version, -v",
     "Print the version.",
     "    Default: false",
+    "Fix import order and remove any unused imports, but do no other formatting.",
+    "    Default: false",
+    "    --fix-imports-only",
   };
 
   private static final String[] ADDITIONAL_USAGE = {
diff --git a/core/src/test/java/com/google/googlejavaformat/java/RemoveUnusedImportsTest.java b/core/src/test/java/com/google/googlejavaformat/java/RemoveUnusedImportsTest.java
index db280f3..0dce001 100644
--- a/core/src/test/java/com/google/googlejavaformat/java/RemoveUnusedImportsTest.java
+++ b/core/src/test/java/com/google/googlejavaformat/java/RemoveUnusedImportsTest.java
@@ -202,19 +202,19 @@
       },
       {
         {
-          "import java.util.*;",
+          "import java.util.*;", //
           "class Test {",
           "  List<String> xs;",
           "}",
         },
         {
-          "import java.util.*;",
+          "import java.util.*;", //
           "class Test {",
           "  List<String> xs;",
           "}",
         },
         {
-          "import java.util.*;",
+          "import java.util.*;", //
           "class Test {",
           "  List<String> xs;",
           "}",
diff --git a/idea_plugin/src/main/scripts/install-idea-jars.sh b/idea_plugin/src/main/scripts/install-idea-jars.sh
old mode 100644
new mode 100755
diff --git a/scripts/google-java-format-diff.py b/scripts/google-java-format-diff.py
old mode 100644
new mode 100755
diff --git a/scripts/mvn-deploy.sh b/scripts/mvn-deploy.sh
old mode 100644
new mode 100755