update config name and description for low-priority

diff --git a/src/bootstrap/config.toml.example b/src/bootstrap/config.toml.example
index 52937e6ac9b228aad88a9b98b5771e3543beb338..7bb61d65882142d02f8c999e682d855a9fce34ac 100644 (file)
--- a/src/bootstrap/config.toml.example
+++ b/src/bootstrap/config.toml.example
@@ -152,8 +152,9 @@
 # known-good version of OpenSSL, compile it, and link it to Cargo.
 #openssl-static = false
 
-# Run the build with low priority
-#low_priority = false
+# Run the build with low priority, by setting the process group's "nice" value
+# to +10 on Unix platforms, and by using a "low priority" job object on Windows.
+#low-priority = false
 
 # =============================================================================
 # General install configuration options