Update TDEL10n module

+ For _translatorinfo strings, replace the references
  to an intentionally non-existent source file and use
  instead comments explaining the purpose of these strings.

Signed-off-by: Slávek Banko <slavek.banko@axis.cz>
(cherry picked from commit 4ced9fd928)

modules/TDEL10n.cmake

@@ -646,6 +646,19 @@ macro( tde_l10n_create_template )
     # update references for modified source files (".tde_l10n" extension)
     string( REGEX REPLACE "\\.tde_l10n[0-9]*(:[0-9]+)" "\\1" _pot "${_pot}" )
 
+    # replace the references for _translatorinfo with instructions in the comment
+    string( REGEX REPLACE
+      "(^|\n)(#:[^\n]*) _translatorinfo:1($|[ \n])"
+      "\\1#. Instead of a literal translation, add your name to the end of the list (separated by a comma).\n\\2\\3\n#, ignore-inconsistent"
+      _pot "${_pot}"
+    )
+    string( REGEX REPLACE
+      "(^|\n)(#:[^\n]*) _translatorinfo:2($|[ \n])"
+      "\\1#. Instead of a literal translation, add your email to the end of the list (separated by a comma).\n\\2\\3\n#, ignore-inconsistent"
+      _pot "${_pot}"
+    )
+    string( REGEX REPLACE "(^|\n)#:($|\n)" "\\1" _pot "${_pot}" )
+
     # save translation template
     if( EXISTS "${_dest}${_catalog}.pot" )
       file( READ "${_dest}${_catalog}.pot" _potOrig )