Aceept also 'warn' string in level::from_str()

include/spdlog/common-inl.h

@@ -34,7 +34,8 @@ SPDLOG_INLINE spdlog::level::level_enum from_str(const std::string &name) SPDLOG
         }
         level++;
     }
-    return level::off;
+    // allow warn = warning before giving up
+    return name == "warn" ? level::warn: level::off;
 }
 } // namespace level
 

tests/test_misc.cpp

@@ -72,6 +72,7 @@ TEST_CASE("to_level_enum", "[convert_to_level_enum]")
     REQUIRE(spdlog::level::from_str("debug") == spdlog::level::debug);
     REQUIRE(spdlog::level::from_str("info") == spdlog::level::info);
     REQUIRE(spdlog::level::from_str("warning") == spdlog::level::warn);
+    REQUIRE(spdlog::level::from_str("warn") == spdlog::level::warn);
     REQUIRE(spdlog::level::from_str("error") == spdlog::level::err);
     REQUIRE(spdlog::level::from_str("critical") == spdlog::level::critical);
     REQUIRE(spdlog::level::from_str("off") == spdlog::level::off);