fix(init): fixed bug with sed on linux systems

scripts/rcstack/rcstack

@@ -1979,13 +1979,6 b' sed_replace() {'
     echo "ERROR: missing 'ini_path' variable"
   fi
 
-  if [[ $DEBUG ]]; then
-    echo
-    echo "sed --in-place=.replaced -E \"s/$1/$2/\" $ini_path"
-    echo "pat1: $1"
-    echo "pat2: $2"
-  fi
-
   sed_func "$1" "$2" "$ini_path"
 }
 
@@ -2221,8 +2214,15 b' version_compare() ('
 # consistent sed function
 # example sed_func x y file.txt
 sed_func() {
+  if [[ $DEBUG ]]; then
+    echo
+    echo "sed -i .replaced -E \"s/$1/$2/\" $in_file"
+    echo "pat1: $1"
+    echo "pat2: $2"
+  fi
+
   in_file=$3
-  sed -i .replaced -E "s/$1/$2/" $in_file
+  sed -i.replaced -E "s/$1/$2/" $in_file
 }
 
 # src/lib/validate_stack_exists.sh
@@ -2697,7 +2697,6 b' rcstack_init_command() {'
     RC_APP_BASE_URL=$(sed_safe_path $app_base_url)
     RC_SQLALCHEMY_DB1_URL=$(sed_safe_path $rc_db1)
     RC_CHANNELSTREAM_WS_URL=$(sed_safe_path $rc_channelstream_url)
-
     config_rhodecode_ini
 
     touch $BOOTSTRAP_RUNTIME_ENV
@@ -6835,7 +6834,7 b' rcstack__completions_parse_requirements() {'
 
 # :command.initialize
 initialize() {
-  version="5.2.0"
+  version="5.2.1"
   long_usage=''
   set -e