Normalize to US English spelling.

src/main/java/org/apache/commons/logging/LogFactory.java

@@ -1661,7 +1661,7 @@ public abstract class LogFactory {
     }
 
     // ----------------------------------------------------------------------
-    // Static initialiser block to perform initialisation at class load time.
+    // Static initializer block to perform initialisation at class load time.
     //
     // We can't do this in the class constructor, as there are many
     // static methods on this class that can be called before any
@@ -1669,8 +1669,8 @@ public abstract class LogFactory {
     // stuff having been set up.
     //
     // Note that this block must come after any variable declarations used
-    // by any methods called from this block, as we want any static initialiser
-    // associated with the variable to run first. If static initialisers for
+    // by any methods called from this block, as we want any static initializer
+    // associated with the variable to run first. If static initializers for
     // variables run after this code, then (a) their value might be needed
     // by methods called from here, and (b) they might *override* any value
     // computed here!

src/main/java/org/apache/commons/logging/impl/Jdk13LumberjackLogger.java

@@ -52,7 +52,7 @@ public class Jdk13LumberjackLogger implements Log, Serializable {
     private boolean classAndMethodFound;
 
     /**
-     * This member variable simply ensures that any attempt to initialise
+     * This member variable simply ensures that any attempt to initialize
      * this class in a pre-1.4 JVM will result in an ExceptionInInitializerError.
      * It must not be private, as an optimising compiler could detect that it
      * is not used and optimise it away.

src/main/java/org/apache/commons/logging/impl/Jdk14Logger.java

@@ -36,7 +36,7 @@ public class Jdk14Logger implements Log, Serializable {
     private static final long serialVersionUID = 4784713551416303804L;
 
     /**
-     * This member variable simply ensures that any attempt to initialise
+     * This member variable simply ensures that any attempt to initialize
      * this class in a pre-1.4 JVM will result in an ExceptionInInitializerError.
      * It must not be private, as an optimising compiler could detect that it
      * is not used and optimise it away.

src/main/java/org/apache/commons/logging/impl/Log4JLogger.java

@@ -64,7 +64,7 @@ public class Log4JLogger implements Log, Serializable {
     // Static Initializer.
     //
     // Note that this must come after the static variable declarations
-    // otherwise initialiser expressions associated with those variables
+    // otherwise initializer expressions associated with those variables
     // will override any settings done here.
     //
     // Verify that log4j is available, and that it is version 1.2.