Fix trailing whitespace

test/test_api_h.py

@@ -8,7 +8,7 @@ import pqclean
 def test_preprocessor():
     for scheme in pqclean.Scheme.all_schemes():
         for implementation in scheme.implementations:
-            if helpers.permit_test('preprocessor', implementation): 
+            if helpers.permit_test('preprocessor', implementation):
                 yield check_preprocessor, implementation
 
 

test/test_char.py

@@ -17,7 +17,7 @@ def test_char():
         )
     for scheme in pqclean.Scheme.all_schemes():
         for implementation in scheme.implementations:
-            if helpers.permit_test('char', implementation): 
+            if helpers.permit_test('char', implementation):
                 yield check_char, implementation
 
 

test/test_compile_lib.py

@@ -10,7 +10,7 @@ import helpers
 def test_compile_lib():
     for scheme in pqclean.Scheme.all_schemes():
         for implementation in scheme.implementations:
-            if helpers.permit_test('compile_lib', implementation): 
+            if helpers.permit_test('compile_lib', implementation):
                 yield check_compile_lib, implementation