Remove duplicate word (#3834)

* Remove duplicate word

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

Author: djmitche

src/commands/CmdContext.cpp

@@ -218,8 +218,8 @@ void CmdContext::defineContext(const std::vector<std::string>& words, std::strin
     if (!valid_write_context) {
       std::stringstream warning;
       warning
-          << format("The filter '{1}' is not a valid modification string, because it contains {2}.",
-                    value, reason)
+          << format("The filter '{1}' is not a valid modification string, because it {2}.", value,
+                    reason)
           << "\nAs such, value for the write context cannot be set (context will not apply on task "
              "add / task log).\n\n"
           << format(