* Refactoring: remove unnecessary variables from the tests.

tests/nix-build.sh

@@ -2,7 +2,7 @@ source common.sh
 
 clearStore
 
-(cd $TEST_ROOT && $nixbuild ../dependencies.nix)
+(cd $TEST_ROOT && nix-build ../dependencies.nix)
 test "$(cat $TEST_ROOT/result/foobar)" = FOOBAR
 
 # The result should be retained by a GC.
@@ -10,10 +10,10 @@ echo A
 target=$(readLink $TEST_ROOT/result)
 echo B
 echo target is $target
-$nixstore --gc
+nix-store --gc
 test -e $target/foobar
 
 # But now it should be gone.
 rm $TEST_ROOT/result
-$nixstore --gc
+nix-store --gc
 if test -e $target/foobar; then false; fi