admin: remove stray tab characters

Accidentally introduced, remove to align with rest of the file.

Fixes: 3b43af8 ("admin: support password through environment")
Signed-off-by: Georg Pfuetzenreuter <mail@georg-pfuetzenreuter.net>

src/admin.c

@@ -609,7 +609,7 @@ add_user(char* users_path, char* username, char* password, bool generate_pwd, in
 
             password = pgagroal_get_password();
          }
-	       else
+         else
          {
             do_free = false;
             do_verify = false;
@@ -848,7 +848,7 @@ update_user(char* users_path, char* username, char* password, bool generate_pwd,
 
                   password = pgagroal_get_password();
                }
-	             else
+               else
                {
                   do_free = false;
                   do_verify = false;