Shorten the long env help (#1791)

FULL_HELP_DOCS.md

@@ -45,7 +45,7 @@ Anything after the `--` double dash (the "slop") is parsed as arguments to the c
 
 * `contract` — Tools for smart contract developers
 * `events` — Watch the network for contract events
-* `env` — Prints the current environment variables or defaults to the stdout, in a format that can be used as .env file. Environment variables have precedency over defaults
+* `env` — Prints the environment variables
 * `keys` — Create and manage identities including keys and addresses
 * `network` — Configure connection to networks
 * `container` — Start local networks in containers
@@ -915,7 +915,11 @@ Watch the network for contract events
 
 ## `stellar env`
 
-Prints the current environment variables or defaults to the stdout, in a format that can be used as .env file. Environment variables have precedency over defaults
+Prints the environment variables
+
+Prints to stdout in a format that can be used as .env file. Environment variables have precedence over defaults.
+
+If there are no environment variables in use, prints the defaults.
 
 **Usage:** `stellar env [OPTIONS]`
 

cmd/soroban-cli/src/commands/mod.rs

@@ -143,9 +143,12 @@ pub enum Cmd {
     /// Watch the network for contract events
     Events(events::Cmd),
 
-    /// Prints the current environment variables or defaults to the stdout, in
-    /// a format that can be used as .env file. Environment variables have
-    /// precedency over defaults.
+    /// Prints the environment variables
+    ///
+    /// Prints to stdout in a format that can be used as .env file. Environment
+    /// variables have precedence over defaults.
+    ///
+    /// If there are no environment variables in use, prints the defaults.
     Env(env::Cmd),
 
     /// Create and manage identities including keys and addresses