Add periods to comments

src/image/entrypoint

@@ -22,7 +22,7 @@ print_user() {
     grep -e "^$1:" /etc/passwd;
 }
 
-# Parse options
+# Parse options.
 while [ $# -gt 0 ]; do
     case $1 in
         --debug)
@@ -53,21 +53,21 @@ if [ "$o_setup" = true ]; then
     if ! check_setpriv >/dev/null 2>&1; then
         echo 'setpriv is not installed or is out of date. Attempting to install setpriv...';
 
-        # Attempt to install setpriv with apk
+        # Attempt to install setpriv with apk.
         if (apk update && apk -s add setpriv) >/dev/null 2>&1; then
             apk add --no-cache "setpriv>=$SETPRIV_VERSION";
             hash -r;
             check_setpriv;
             echo 'setpriv installed!';
 
-        # Attempt to install setpriv from util-linux with apt-get
+        # Attempt to install setpriv from util-linux with apt-get.
         elif (apt-get update && apt-get install --dry-run util-linux) >/dev/null 2>&1; then
             apt-get satisfy --no-install-recommends -y "util-linux (>=$UTIL_LINUX_VERSION)";
             hash -r;
             check_setpriv;
             echo 'setpriv installed!';
 
-        # Attempt to install gosu as a fallback
+        # Attempt to install gosu as a fallback.
         elif ! check_gosu >/dev/null 2>&1; then
             echo 'gosu is not installed or is out of date. Attempting to install gosu...';
 
@@ -171,7 +171,7 @@ else
         echo "$CHOWN_LIST" | xargs chown -c "$HOST_MAPPED_UID:$HOST_MAPPED_GID" >&3;
     fi
 
-    # Execute using $HOST_MAPPED_UID
+    # Execute using $HOST_MAPPED_UID.
     if check_setpriv >/dev/null 2>&1; then
         if [ -n "$CAPABILITIES" ]; then
             capabilities="-all,$CAPABILITIES";