add stdout clearing examples to the examples

Author: Nejc Stebe

test_scripts/run_unittests_golang.sh

@@ -37,6 +37,7 @@ cp -R $1/* $GO_BUILD_SUBFOLDER
 cd "$GO_BUILD_SUBFOLDER" 2>/dev/null
 
 if [ $? -ne 0 ]; then
+  clear
   printf "Error: Go build folder '$GO_BUILD_SUBFOLDER' does not exist.\n"
   exit $UNRECOVERABLE_ERROR_EXIT_CODE
 fi

test_scripts/run_unittests_python.sh

@@ -47,6 +47,7 @@ cp -R $1/* $PYTHON_BUILD_SUBFOLDER
 cd "$PYTHON_BUILD_SUBFOLDER" 2>/dev/null
 
 if [ $? -ne 0 ]; then
+  clear
   printf "Error: Python build folder '$PYTHON_BUILD_SUBFOLDER' does not exist.\n"
   exit $UNRECOVERABLE_ERROR_EXIT_CODE
 fi

test_scripts/run_unittests_react.sh

@@ -45,6 +45,7 @@ cp -R $1/* $NODE_SUBFOLDER
 cd "$NODE_SUBFOLDER" 2>/dev/null
 
 if [ $? -ne 0 ]; then
+  clear
   echo "Error: Subfolder '$1' does not exist."
   exit $UNRECOVERABLE_ERROR_EXIT_CODE
 fi