feat(style): change user-facing messages to lowercase

[Pawank06]

summary

• update user-facing messages to use lowercase text

notes

• improves consistency across shell output
• no functional behavior change

Summary by CodeRabbit

• Style
  • Standardized error message capitalization to use lowercase for more consistent messaging.
  • Adjusted one PATH-related error to be sent to stderr so diagnostic output is separated from regular output.

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[coderabbitai]

📝 Walkthrough

Walkthrough

Lowercase-only edits to error messages in src/main.rs: the read-line expect text was changed, two "Couldn't"/"Couldn't" messages were lowercased to "couldn't", and one PATH lookup error now writes to stderr. No functional control-flow changes.

Changes

Cohort / File(s)	Summary
Error message edits src/main.rs	- Changed expect text from "Unable to read line" → "unable to read line". - Lowercased "Couldn't find val {}" → "couldn't find val {}" in final command-not-found path. - PATH lookup error message changed to "couldn't read PATH environment variable: {}" and now prints to stderr.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Poem

A rabbit taps keys late at night,
changing caps to soft moonlight.
"unable" whispers, "couldn't" sighs,
tiny fixes, calm and wise.
Hop, small patch — the logs look right. 🐇

Pre-merge checks and finishing touches

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	You can run @coderabbitai generate docstrings to improve docstring coverage.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the main change: converting user-facing error messages to lowercase for consistency, which is the core focus of all three modifications in src/main.rs.

✨ Finishing touches

• 📝 Generate docstrings

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📜 Recent review details

Configuration used: defaults

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 4c398ee and 533508c.

📒 Files selected for processing (1)

• src/main.rs

🔇 Additional comments (2)

src/main.rs (2)

17-17: LGTM! Lowercase formatting improves consistency.

The lowercase error message aligns with the PR objective and follows common error message conventions.

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71-71: Excellent improvement! Error handling now consistent.

This change addresses the previous review feedback by using eprintln! for stderr output and providing a clear error message. This is consistent with other error handling in the codebase (lines 78, 88, 117).

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[coderabbitai]

Actionable comments posted: 1

Fix all issues with AI Agents 🤖

In @src/main.rs:
- Line 71: Replace the unclear stdout print in the Err(e) arms that currently
read "couldn't find val" with a stderr log that includes a clearer message and
the error details; specifically, change the Err(e) => println!("couldn't find
val {}", e) occurrences to use eprintln! and a clearer phrase such as "couldn't
find value" or "error finding value" plus the error (i.e., log a descriptive
message and include e) for both the Err(e) arm shown and the similar occurrence
at the later Err(e) => println!("couldn't find val {}", e).

📜 Review details

Configuration used: defaults

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 6220a3f and 4c398ee.

📒 Files selected for processing (1)

• src/main.rs

🔇 Additional comments (1)

src/main.rs (1)

17-17: LGTM - Consistent lowercase style.

The lowercase format aligns with other error messages in the codebase.