Fix typo in build.py (#1898)

IoT.js-DCO-1.0-Signed-off-by: Akos Kiss akiss@inf.u-szeged.hu

Author: akosthekiss

tools/build.py

@@ -457,7 +457,7 @@ def run_checktest(options):
             print("Skip unit tests - target-host pair is not allowed\n")
     else:
         Terminal.pprint("\nTo run tests use '--run-test' "
-                        "or one of the folowing commands:",
+                        "or one of the following commands:",
                         Terminal.blue)
         print("\n    tools/testrunner.py %s/%s/%s/bin/iotjs\n"
               % (options.builddir, options.target_tuple, options.buildtype))