[X4U] Why does Bash do this?

[Robert Nicholson]

+ cat build.sh
#!/bin/sh
JAVA_HOME=/System/Library/Frameworks/JavaVM.framework/Home
echo $JAVA_HOME


I'm confused about one feature of bash or /bin/sh under Tiger.

Why does it complain about blank lines?

sh build.sh
+ sh build.sh
/System/Library/Frameworks/JavaVM.framework/Home
: command not found
: command not found

those last two errors are because there's two blank lines at the end  
of the script.