[lldb] Correct style of error messages (#156774)

The LLVM Style Guide says the following about error and warning messages
[1]:

> [T]o match error message styles commonly produced by other tools,
> start the first sentence with a lowercase letter, and finish the last
> sentence without a period, if it would end in one otherwise.

I often provide this feedback during code review, but we still have a
bunch of places where we have inconsistent error message, which bothers
me as a user. This PR identifies a handful of those places and updates
the messages to be consistent.

[1] https://llvm.org/docs/CodingStandards.html#error-and-warning-messages

1 files changed, 3 insertions, 3 deletions

diff --git a/lldb/source/Commands/CommandObjectTarget.cpp b/lldb/source/Commands/CommandObjectTarget.cpp
index 3ae08dec75e3..004542e3e6ae 100644
--- a/lldb/source/Commands/CommandObjectTarget.cpp
+++ b/lldb/source/Commands/CommandObjectTarget.cpp
@@ -2420,7 +2420,7 @@ protected:
     result.GetErrorStream().SetAddressByteSize(addr_byte_size);
 
     if (command.GetArgumentCount() == 0) {
-      result.AppendError("file option must be specified.");
+      result.AppendError("file option must be specified");
       return;
     } else {
       // Dump specified images (by basename or fullpath)
@@ -3565,13 +3565,13 @@ protected:
 
     ThreadList threads(process->GetThreadList());
     if (threads.GetSize() == 0) {
-      result.AppendError("The process must be paused to use this command.");
+      result.AppendError("the process must be paused to use this command");
       return;
     }
 
     ThreadSP thread(threads.GetThreadAtIndex(0));
     if (!thread) {
-      result.AppendError("The process must be paused to use this command.");
+      result.AppendError("the process must be paused to use this command");
       return;
     }