Changed generate to output which more closely aligns with what it says in the references docs

cli/args/flags.rs

@@ -1190,7 +1190,7 @@ static DENO_HELP: &str = cstr!(
     <g>clean</>        Remove the cache directory
     <g>compile</>      Compile the script into a self contained executable
                   <p(245)>deno compile main.ts  |  deno compile --target=x86_64-unknown-linux-gnu</>
-    <g>completions</>  Generate shell completions
+    <g>completions</>  Output shell completions
     <g>coverage</>     Print coverage reports
     <g>doc</>          Generate and show documentation for a module or built-ins
                   <p(245)>deno doc  |  deno doc --json  |  deno doc --html mod.ts</>

tests/integration/flags_tests.rs

@@ -32,7 +32,7 @@ fn help_output() {
     "Initialize a new project",
     "Run tests",
     "Publish the current working directory's package or workspace",
-    "Generate shell completions",
+    "Output shell completions",
     "Print runtime TypeScript declarations",
     "Start the language server",
     #[cfg(feature = "upgrade")]