Clean up some php code in repository

gistfile1.txt

#convert leading 4-spaces to tabs
for i in $(seq 15); do
	find . -! -path "*/.git/*" -! -path "*/bower_components/*" -type f  -! -path "./img/*" -! -path "./_log/*" -! -path "./download/*" -! -path "./fonts/*" -exec sed -i "s/^\(\(    \)*\)\(    \)/\1\t/" \{\} \;
done

#remove trailing whitespace
find . -! -path "*/.git/*" -! -path "*/bower_components/*" -type f  -! -path "./img/*" -! -path "./_log/*" -! -path "./download/*" -! -path "./fonts/*" -exec \
sed -i "s/\(\t\| \)\+\$//" \{\} \;

#remove multiple empty lines
for i in (find . -! -path "*/.git/*" -! -path "*/bower_components/*" -type f  -! -path "./img/*" -! -path "./_log/*" -! -path "./download/*" -! -path "./fonts/*" -! -name "*.removed-lines")
do
	cat -s "$i" > "$i.removed-lines"
	mv -f "$i.removed-lines" "$i"
done

#remove short tags
find . -! -path "*/.git/*" -! -path "*/bower_components/*" -type f  -! -path "./img/*" -! -path "./_log/*" -! -path "./download/*" -! -path "./fonts/*" -name "*.php" -exec sed -i 's/<?\([^=px]\|$\)/<?php \1/g' \{\} \;
find . -! -path "*/.git/*" -! -path "*/bower_components/*" -type f  -! -path "./img/*" -! -path "./_log/*" -! -path "./download/*" -! -path "./fonts/*" -name "*.php" -exec sed -i 's/<?php \( \|$\)/<?php\1/g' \{\} \;

#fix execution rights of deploy scripts
find deploy -name "*.sh" -exec chmod +x \{\} \;

#remove closing php tag on end of file
find . -! -path "*/.git/*" -! -path "*/bower_components/*" -type f  -! -path "./img/*" -! -path "./_log/*" -! -path "./download/*" -! -path "./fonts/*" -name "*.php" -exec perl -0777 -i -pe 's/[\s]*\?>([\s]*)\Z//' \{\} \;

#Make sure there is an empty line at end of file
find . -! -path "*/.git/*" -! -path "*/bower_components/*" -type f  -! -path "./img/*" -! -path "./_log/*" -! -path "./download/*" -! -path "./fonts/*" -name "*.php" -exec sed -i -e '$a\' \{\} \;