Apply patch from HARMONY-6685 "SHA1PRNG produces less optimal"

git-svn-id: https://svn.apache.org/repos/asf/harmony/enhanced/java/trunk@1148459 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/classlib/modules/security/src/main/java/common/org/apache/harmony/security/provider/crypto/SHA1PRNG_SecureRandomImpl.java b/classlib/modules/security/src/main/java/common/org/apache/harmony/security/provider/crypto/SHA1PRNG_SecureRandomImpl.java
index cd926d8..b6556a5 100644
--- a/classlib/modules/security/src/main/java/common/org/apache/harmony/security/provider/crypto/SHA1PRNG_SecureRandomImpl.java
+++ b/classlib/modules/security/src/main/java/common/org/apache/harmony/security/provider/crypto/SHA1PRNG_SecureRandomImpl.java
@@ -317,7 +317,7 @@
                 seed[i] = 0;
             }
 
-            bits = seedLength << 3 + 64; // transforming # of bytes into # of bits
+            bits = (seedLength << 3) + 64; // transforming # of bytes into # of bits
 
             // putting # of bits into two last words (14,15) of 16 word frame in 
             // seed or copies array depending on total length after padding