fix(cli): make CLI argument descriptions slightly more clear

Signed-off-by: Steven Noonan <steven@uplinklabs.net>

Author: tycho

src/cli.rs

@@ -16,8 +16,9 @@ use crate::ir::Version;
     about = "Vulkan/OpenGL/GLES/EGL/GLX/WGL loader generator"
 )]
 pub struct Cli {
-    /// Automatically include any extension whose commands were promoted into the
-    /// requested core version, even if not listed in --extensions.
+    /// Automatically include any extension whose commands or enums were
+    /// promoted into the requested core version, even if not listed in
+    /// --extensions.
     #[arg(long)]
     pub promoted: bool,
 
@@ -28,9 +29,9 @@ pub struct Cli {
     #[arg(long)]
     pub predecessors: bool,
 
-    /// API specifiers: comma-separated name\[:profile\]=version pairs.
-    /// Profile is required for GL (core|compat). Version is optional (latest if omitted).
-    /// Example: gl:core=3.3,gles2=3.0
+    /// API specifiers: comma-separated name[:profile]=version pairs.  Profile
+    /// is required for GL (core|compat). Version is optional (latest if
+    /// omitted).  Example: gl:core=3.3,gles2=3.0
     #[arg(long, required = true)]
     pub api: String,
 
@@ -53,7 +54,6 @@ pub struct Cli {
     pub quiet: bool,
 
     /// Fetch XML specs from Khronos remote URLs instead of bundled copies.
-    /// Any fetch failure is fatal.
     #[arg(long)]
     pub fetch: bool,