Fix sentence structure in yabridgectl messages

tools/yabridgectl/src/actions.rs

@@ -257,7 +257,7 @@ pub fn do_sync(config: &Config, prune: bool, verbose: bool) -> Result<()> {
                     "Warning: 'yabridge-host.exe' is not present in your login shell's search \
                      path. Yabridge won't be able to run using the copy-based installation method \
                      until this is fixed.\n\
-                     Add '{}' to {}'s login shell {} environment variables. See the \
+                     Add '{}' to {}'s login shell {} environment variable. See the \
                      troubleshooting section of the readme for more details. Rerun this command to \
                      verify that the variable has been set correctly, and then reboot your system \
                      to complete the setup.\n\

tools/yabridgectl/src/utils.rs

@@ -65,8 +65,8 @@ pub fn verify_path_setup() -> Result<(), String> {
                         "\n{}",
                         wrap(&format!(
                             "WARNING: Yabridgectl does not know how to handle your login shell \
-                             '{}', skipping PATH setup check. Feel free to open a feature request \
-                             in order to get yabridgectl to support your shell.\n\
+                             '{}', skipping PATH environment variable check. Feel free to open a \
+                             feature request in order to get yabridgectl to support your shell.\n\
                              \n\
                              https://github.com/robbert-vdh/yabridge/issues",
                             shell.bright_white(),