supplemental: fix periods in javadoc summary

src/main/java/com/puppycrawl/tools/checkstyle/Main.java

@@ -503,7 +503,7 @@ private static AuditListener createListener(OutputFormat format, Path outputLoca
     }
 
     /**
-     * Create output stream or return System.out
+     * Create output stream or return System.out.
      *
      * @param outputPath output location
      * @return output stream

src/main/java/com/puppycrawl/tools/checkstyle/checks/SuppressWarningsHolder.java

@@ -72,7 +72,7 @@ public class SuppressWarningsHolder
      */
     private static final String CHECKSTYLE_PREFIX = "checkstyle:";
 
-    /** Java.lang namespace prefix, which is stripped from SuppressWarnings */
+    /** Java.lang namespace prefix, which is stripped from SuppressWarnings. */
     private static final String JAVA_LANG_PREFIX = "java.lang.";
 
     /** Suffix to be removed from subclasses of Check. */

src/main/java/com/puppycrawl/tools/checkstyle/checks/coding/ModifiedControlVariableCheck.java

@@ -408,7 +408,7 @@ private static Set<String> getForIteratorVariables(DetailAST ast) {
     }
 
     /**
-     * Find all child of given AST of type TokenType.EXPR
+     * Find all child of given AST of type TokenType.EXPR.
      *
      * @param ast parent of expressions to find
      * @return all child of given ast

src/main/java/com/puppycrawl/tools/checkstyle/checks/imports/PkgImportControl.java

@@ -29,13 +29,13 @@
  * be a sub-package, a class, or an allow/disallow rule.
  */
 class PkgImportControl extends AbstractImportControl {
-    /** The package separator: "." */
+    /** The package separator: ".". */
     private static final String DOT = ".";
 
     /** The regex for the package separator: "\\.". */
     private static final String DOT_REGEX = "\\.";
 
-    /** A pattern matching the package separator: "\." */
+    /** A pattern matching the package separator: "\.". */
     private static final Pattern DOT_REGEX_PATTERN = Pattern.compile(DOT_REGEX);
 
     /** The regex for the escaped package separator: "\\\\.". */

src/main/java/com/puppycrawl/tools/checkstyle/checks/metrics/AbstractClassCouplingCheck.java

@@ -49,7 +49,7 @@
 @FileStatefulCheck
 public abstract class AbstractClassCouplingCheck extends AbstractCheck {
 
-    /** A package separator - "." */
+    /** A package separator - ".". */
     private static final char DOT = '.';
 
     /** Class names to ignore. */