Fixed typos

tools/db_crashtest2.py

@@ -146,7 +146,7 @@ def main(argv):
         stdoutdata = stdoutdata.lower()
         errorcount = (stdoutdata.count('error') -
                       stdoutdata.count('got errors 0 times'))
-        print "#times error occured in output is " + str(errorcount) + "\n"
+        print "#times error occurred in output is " + str(errorcount) + "\n"
 
         if (errorcount > 0):
             print "TEST FAILED. Output has 'error'!!!\n"

tools/ldb_test.py

@@ -314,7 +314,7 @@ class LDBTestCase(unittest.TestCase):
         # Dump command fails because of typo in params
         dumpFilePath = os.path.join(self.TMP_DIR, "dump8")
         self.assertFalse(self.dumpDb(
-            "--db=%s --create_if_missin" % origDbPath, dumpFilePath))
+            "--db=%s --create_if_missing" % origDbPath, dumpFilePath))
 
     def testMiscAdminTask(self):
         print "Running testMiscAdminTask..."

tools/shell/ShellState.h

@@ -7,11 +7,11 @@ class ShellContext;
 /*
  * Currently, there are four types of state in total
  * 1. start state: the first state the program enters
- * 2. connecting state: the program try to connnect to a rocksdb server, whose
+ * 2. connecting state: the program try to connect to a rocksdb server, whose
  *    previous states could be "start" or "connected" states
  * 3. connected states: the program has already connected to a server, and is
  *    processing user commands
- * 4. stop state: the last state the program enters, do some cleanning up things
+ * 4. stop state: the last state the program enters, do some cleaning up things
  */
 
 class ShellState {