Ensure status log messages are printed with normal color (#884)

* stdlib: Use "normal" color in log_status()

Reset color for normal status messages.

* stdlib: Set variables in log_error() only if needed

stdlib.sh

@@ -135,8 +135,9 @@ direnv_layout_dir() {
 log_status() {
   if [[ -n $DIRENV_LOG_FORMAT ]]; then
     local msg=$*
+    local color_normal="\e[m"
     # shellcheck disable=SC2059,SC1117
-    printf "${DIRENV_LOG_FORMAT}\n" "$msg" >&2
+    printf "${color_normal}${DIRENV_LOG_FORMAT}\n" "$msg" >&2
   fi
 }
 
@@ -152,10 +153,10 @@ log_status() {
 #    log_error "Unable to find specified directory!"
 
 log_error() {
-  local color_normal="\e[m"
-  local color_error="\e[38;5;1m"
   if [[ -n $DIRENV_LOG_FORMAT ]]; then
     local msg=$*
+    local color_normal="\e[m"
+    local color_error="\e[38;5;1m"
     # shellcheck disable=SC2059,SC1117
     printf "${color_error}${DIRENV_LOG_FORMAT}${color_normal}\n" "$msg" >&2
   fi