Merge "Update m help text with guidance on parallelism"
diff --git a/help.sh b/help.sh
index 4af5154..bdb078f 100755
--- a/help.sh
+++ b/help.sh
@@ -12,11 +12,15 @@
source build/envsetup.sh # Add "lunch" (and other utilities and variables)
# to the shell environment.
lunch [<product>-<variant>] # Choose the device to target.
-m -j [<goals>] # Execute the configured build.
+m [<goals>] # Execute the configured build.
Usage of "m" imitates usage of the program "make".
See '"${SCRIPT_DIR}"'/Usage.txt for more info about build usage and concepts.
+The parallelism of the build can be set with a -jN argument to "m". If you
+don't provide a -j argument, the build system automatically selects a parallel
+task count that it thinks is optimal for your system.
+
Common goals are:
clean (aka clobber) equivalent to rm -rf out/