logcat: parse failure for -n <KBsize> and -r <rotate limit>

Bug: https://code.google.com/p/android/issues/detail?id=72867
Change-Id: Id0c988543ecfccc5054d15d4195ef578468d50af
diff --git a/logcat/logcat.cpp b/logcat/logcat.cpp
index 16fe7ee..7c6af42 100644
--- a/logcat/logcat.cpp
+++ b/logcat/logcat.cpp
@@ -336,7 +336,7 @@
     for (;;) {
         int ret;
 
-        ret = getopt(argc, argv, "cdt:T:gG:sQf:r::n:v:b:BSpP:");
+        ret = getopt(argc, argv, "cdt:T:gG:sQf:r:n:v:b:BSpP:");
 
         if (ret < 0) {
             break;