fx "transactional" typos

Author: Anton-Latukha

scripts/install-nix-from-closure.sh

@@ -11,7 +11,7 @@
 ### Upstream URL: https://github.com/NixOS/nix/blob/master/scripts/install-nix-from-closure.sh
 ###
 ### Script is fully POSIX compatible, with controlled exceptions.
-### (must be) Fully transnational. That means, if it not succeeded - it does rolls back.
+### (must be) Fully transactional. That means, if it not succeeded - it does rolls back.
 ###
 ### `/bin/sh -u` is not possible to do, because Docker environments has USER='', and shell checks that and not get even to execution part
 ###
@@ -353,7 +353,7 @@ installNix() {
     #**************************************************
 
     # Function must have revert procedure. In case of any problem - function quits without artifacts/changes to the system
-    # Nix is pure, and claims to be transnational, so let's show people clean transnational installation
+    # Nix is pure, and claims to be transactional, so let's show people clean transactional installation
 
     createDest() {