git-extra: Rewrite part of bash_profile.sh for readability

The bash_profile.sh contained several echo statements redirecting output
to the newly created ~/.bash_profile. This was rewritten to use heredoc syntax.

Signed-off-by: David Macek <david.macek.0@gmail.com>

git-extra/bash_profile.sh

@@ -3,7 +3,9 @@ if [ -e ~/.bashrc -a ! -e ~/.bash_profile -a ! -e ~/.bash_login -a ! -e ~/.profi
   printf "\n\033[31mWARNING: Found ~/.bashrc but no ~/.bash_profile, ~/.bash_login or ~/.profile.\033[m\n\n"
   echo "This looks like an incorrect setup."
   echo "A ~/.bash_profile containing \"if [ -f ~/.bashrc ]; then . ~/.bashrc; fi\" will be created for you."
-  echo "# generated by Git for Windows" > ~/.bash_profile
-  echo "if [ -f ~/.profile ]; then . ~/.profile; fi" >> ~/.bash_profile
-  echo "if [ -f ~/.bashrc ]; then . ~/.bashrc; fi" >> ~/.bash_profile
+  cat >~/.bash_profile <<\EOF
+# generated by Git for Windows
+test -f ~/.profile && . ~/.profile
+test -f ~/.bashrc && . ~/.bashrc
+EOF
 fi