Update deepgrep from alias to function

The latest version of macOS did not play well with the version of
deepgrep that piped find to xargs. Replaced it with version to use exec
feature of find.

bash/aliases

@@ -55,7 +55,6 @@ alias can-haz='sudo apt-get install '
 alias take='sudo chown $(whoami):$(whoami) '
 alias simple-http-server='python3 -m http.server'
 alias numfiles='find . -maxdepth 1 -type f | wc -l'
-alias deepgrep='find . -type d -name "node_modules" -prune -o -type f -not -name "*.swp" -not -name "*.pyc" | sed "s/$/\"/g" | sed "s/^/\"/g" | xargs grep --color '
 alias slugify="sed -e 's/[^[:alnum:]]/-/g' | tr -s '-' | tr A-Z a-z"
 
 # Show list of git branches

bash/functions

@@ -28,3 +28,13 @@ function add-date-prefix {
 function get-bitrate {
     exiftool -AudioBitrate "$1" | awk '{print $4}'
 }
+
+function deepgrep {
+    find . \
+        -type d -name node_modules -prune -o \
+        -type d -name .git -prune -o \
+        -type f \
+        -not -name "*.swp" \
+        -not -name "*.pyc" \
+        -exec grep --with-filename --color "$@" {} \;
+}