Revert "Using indexOf char instead of indexOf String"

This reverts commit 272463c9791dd8cb7a814e44b262f7a4a5c7f863.

Change-Id: Ifbf82e46bbefc6ad41f57f5d4fb3a21c6b0f1b2f
diff --git a/bundles/org.eclipse.osgi.util/src/org/osgi/util/xml/XMLParserActivator.java b/bundles/org.eclipse.osgi.util/src/org/osgi/util/xml/XMLParserActivator.java
index 7086f3d..a7e84c4 100644
--- a/bundles/org.eclipse.osgi.util/src/org/osgi/util/xml/XMLParserActivator.java
+++ b/bundles/org.eclipse.osgi.util/src/org/osgi/util/xml/XMLParserActivator.java
@@ -204,7 +204,7 @@
 			if (pfcName.length() == 0) {
 				continue; // blank line
 			}
-			int commentIdx = pfcName.indexOf('#');
+			int commentIdx = pfcName.indexOf("#");
 			if (commentIdx == 0) { // comment line
 				continue;
 			} else