Update upstream source from tag 'upstream/3.1.0'

Update to upstream version '3.1.0'
with Debian dir 248b875f378ce1bab3315f6ed2cecdf63a4cc3cc

1 files changed, 4 insertions, 4 deletions

diff --git a/engine/SCons/Variables/__init__.py b/engine/SCons/Variables/__init__.py
index c218e18..5b4b3af 100644
--- a/engine/SCons/Variables/__init__.py
+++ b/engine/SCons/Variables/__init__.py
@@ -26,7 +26,7 @@ customizable variables to an SCons build.
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-__revision__ = "src/engine/SCons/Variables/__init__.py a56bbd8c09fb219ab8a9673330ffcd55279219d0 2019-03-26 23:16:31 bdeegan"
+__revision__ = "src/engine/SCons/Variables/__init__.py e724ae812eb96f4858a132f5b8c769724744faf6 2019-07-21 00:04:47 bdeegan"
 
 import os.path
 import sys
@@ -99,7 +99,7 @@ class Variables(object):
         option.converter = converter
 
         self.options.append(option)
-        
+
         # options might be added after the 'unknown' dict has been set up,
         # so we remove the key and all its aliases from that dict
         for alias in list(option.aliases) + [ option.key ]:
@@ -168,7 +168,7 @@ class Variables(object):
 
         # first set the defaults:
         for option in self.options:
-            if not option.default is None:
+            if option.default is not None:
                 values[option.key] = option.default
 
         # next set the value specified in the options file
@@ -288,7 +288,7 @@ class Variables(object):
 
         env - an environment that is used to get the current values
               of the options.
-        cmp - Either a function as follows: The specific sort function should take two arguments and return -1, 0 or 1 
+        cmp - Either a function as follows: The specific sort function should take two arguments and return -1, 0 or 1
               or a boolean to indicate if it should be sorted.
         """