Apply suggestions from code review

Author: encukou

development-tools/clang.rst

@@ -107,7 +107,7 @@ The ``--without-pymalloc`` option is not necessary (tests should pass without it
 but disabling pymalloc helps ASan uncover more bugs (ASan does not track
 individual allocations done by pymalloc).
 
-It is OK to specify both sanitizers. 
+It is OK to specify both sanitizers.
 
 After that, run ``make`` and ``make test`` as usual.
 Note that ``make`` itself may fail with a sanitizer failure,