Fix typos.

Patch from  Jurko Gospodnetic


[SVN r42296]

v2/test/BoostBuild.py

@@ -461,7 +461,7 @@ class Tester(TestCmd.TestCmd):
         if condition and hasattr(self, 'difference'):            
             f = StringIO()
             self.difference.pprint(f)
-            annotation("changes causes by the last build command", f.getvalue())
+            annotation("changes caused by the last build command", f.getvalue())
             
         if condition and dump_stdio:
             self.dump_stdio()
@@ -662,7 +662,6 @@ class Tester(TestCmd.TestCmd):
 
     def maybe_do_diff(self, actual, expected):
         if os.environ.has_key("DO_DIFF") and os.environ["DO_DIFF"] != '':
-            
             e = tempfile.mktemp("expected")
             a = tempfile.mktemp("actual")
             open(e, "w").write(expected)

v2/test/empty.jam

@@ -1,5 +1,5 @@
-# This file is empty; it just suppresses warnings
-
 # Copyright 2001 Dave Abrahams
 # Distributed under the Boost Software License, Version 1.0.
 # (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+# This file is empty; it just suppresses warnings

v2/test/readme.txt

@@ -1,7 +1,6 @@
-Comprehensive tests for Boost.Build v2; requires Python. To test, execute:
-
-    python test_all.py
-
 # Copyright 2002 Dave Abrahams
 # Distributed under the Boost Software License, Version 1.0.
 # (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+  See test_system.html for detailed information on using the Boost Build test
+system.

v2/test/test_system.html

@@ -91,7 +91,7 @@
     and scripts for automatically testing user-obversable behaviour. It uses
     components from testing systems of <a href=
     "http://www.scons.org">Scons</a> and <a href=
-    "http://subversion.tigris.org">Subverion</a>, together with some
+    "http://subversion.tigris.org">Subversion</a>, together with some
     additional functionality.</p>
 
     <p>To run the tests you'd need:</p>

v2/util/option.jam

@@ -25,7 +25,7 @@ rule process ( )
     # Check command-line args as soon as possible.  For each option try
     # to load module named after option. Is that succeeds, invoke 'process'
     # rule in the module. The rule may return "true" to indicate that the
-    # regular built process should not be attempted.
+    # regular build process should not be attempted.
     #
     # Options take the general form of: --<name>[=<value>] [<value>]
     #