Don't reposition the input stream when a \r is immediately followed by

the end of input.

Without that change, the unit test testMacLines would cause an endless
loop for JDK 1.1, at least with:

$ java -fullversion
java full version "Linux_JDK_1.1.8_v3_green_threads"


git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@270995 13f79535-47bb-0310-9956-ffa450edef68

src/main/org/apache/tools/ant/taskdefs/FixCRLF.java

@@ -853,7 +853,7 @@ public class FixCRLF extends MatchingTask {
                     ++eolcount;
                     eolStr.append('\r');
                     reader.mark(2);
-                    switch ((char)(ch = reader.read())) {
+                    switch ((ch = reader.read())) {
                     case '\r':
                         if ((char)(ch = reader.read()) == '\n') {
                             eolcount += 2;
@@ -864,6 +864,10 @@ public class FixCRLF extends MatchingTask {
                         ++eolcount;
                         eolStr.append('\n');
                         break;
+                    case -1:
+                        // don't reposition when we've reached the end
+                        // of the stream
+                        break;
                     default:
                         reader.reset();
                         break;