install/redhat_readme.txt: Clarification of python version-checking process.
install/redhat_readme.txt: Clarification of python version-checking process.

yongwen/makahiki,csdl/makahiki,jtakayama/makahiki-draft,csdl/makahiki,jtakayama/makahiki-draft,yongwen/makahiki,csdl/makahiki,jtakayama/makahiki-draft,csdl/makahiki,yongwen/makahiki,yongwen/makahiki,jtakayama/makahiki-draft