Resolve SC2162: 'read without -r mangles backslashes'

More information:

https://github.com/koalaman/shellcheck/wiki/SC2162

http://wiki.bash-hackers.org/commands/builtin/read

plugins/ps/commands

@@ -111,7 +111,7 @@ case "$1" in
       dokku_log_info1_quiet "Scaling for $APP"
       dokku_col_log_info1_quiet "proctype" "qty"
       dokku_col_log_info1_quiet "--------" "---"
-      while read line || [[ -n "$line" ]]; do
+      while read -r line || [[ -n "$line" ]]; do
         [[ -z "$line" ]] && continue
         PROC_NAME=${line%%=*}
         PROC_COUNT=${line#*=}

plugins/ps/functions

@@ -4,7 +4,7 @@ source "$PLUGIN_CORE_AVAILABLE_PATH/common/functions"
 
 print_dokku_scale_file() {
   local APP="$1"; local DOKKU_SCALE_FILE="$DOKKU_ROOT/$APP/DOKKU_SCALE"
-  while read line || [[ -n "$line" ]]; do
+  while read -r line || [[ -n "$line" ]]; do
     dokku_log_info2_quiet "$line"
   done < "$DOKKU_SCALE_FILE"
 }
@@ -25,7 +25,7 @@ generate_scale_file() {
     if [[ ! -e "$PROCFILE" ]]; then
       echo "web=1" >> $DOKKU_SCALE_FILE
     else
-      while read line || [[ -n "$line" ]]; do
+      while read -r line || [[ -n "$line" ]]; do
         [[ -z "$line" ]] && continue
         NAME=${line%%:*}
         NUM_PROCS=0