Only using double quoted strings when needing interpolation.
If git-blame brought you here you may want to read this, the
problem is with git-blame, not this change.
Try running these two lines just once:
```
git config --global alias.praise 'log -p -M --follow --stat --'
git config --global alias.praise-line 'log -p -M --pretty=format:"%h (%an %ai)" -L'
```
Now in future you can use
`git praise <path/to/your/file>`
or if you want to see the evolution of a specific line or range of lines
`git praise-line <start-line>:<end-line>:<path/to/your/file>`
Some examples you should try:
```
git praise lib/awesome_print/version.rb
git praise-line 8:8:lib/awesome_print/version.rb
```
Inspiration for these aliases:
http://blog.andrewray.me/a-better-git-blame/
