Update osx_utils.sh

Co-authored-by: Andrew Murray <3112309+radarhere@users.noreply.github.com>

osx_utils.sh

@@ -292,7 +292,7 @@ function install_mac_cpython {
     local inst_path=$DOWNLOADS_SDIR/$py_inst
     local retval=""
     mkdir -p $DOWNLOADS_SDIR
-    # exit early on curl errors, but dont let it exit the shell
+    # exit early on curl errors, but don't let it exit the shell
     cmd_notexit curl -f $MACPYTHON_URL/$py_stripped/${py_inst} > $inst_path || retval=$?
     if [ ${retval:-0} -ne 0 ]; then
       echo "Python download failed! Check ${py_inst} exists on the server."