github: Adding space for error messages in issue templates (#4107)

Signed-off-by: Adam Farley <[email protected]>

Author: adamfarley

.github/ISSUE_TEMPLATE/systemdown.md

@@ -11,4 +11,9 @@ assignees: ''
 
 - Link to any log file showing the problem:
 
+- Specific error text (if applicable):
+```
+Replace this sentence with the error text.
+```
+
 - Please describe the issue:

.github/ISSUE_TEMPLATE/systemfaulty.md

@@ -10,6 +10,9 @@ assignees: ''
 - Please put the system name (or other machine group identifier) in the title of this issue.
 
 - Output or log showing the problem:
+```
+Replace this sentence with the error text.
+```
 
 - Output or log from another machine where it passes: 
 

.github/ISSUE_TEMPLATE/testcasefail.md

@@ -10,11 +10,15 @@ Please set the title to indicate the test name and machine name where known.
 To make it easy for the infrastructure team to repeat and diagnose, please
 answer the following questions:
 
-- test suite/name (e.g, BUILD_LIST, TARGET, CUSTOM_TARGET)?
-- a link into recent `Test_` job on https://ci.adoptium.net which showed the failure
+- Test suite/name (e.g, BUILD_LIST, TARGET, CUSTOM_TARGET):
+- Recent `Test_` link to ci.adoptium.net that shows the failure:
+- Specific error text (if applicable):
+```
+Replace this sentence with the error text.
+```
 - **Hyperlink** to re-run in Grinder: 
-- Is there an existing issue elsewhere covering this?
-- Which machine(s) does it work on?
-- Which machine(s) does it fail on?
+- Any existing issues covering this:
+- Machine(s) this test works on:
+- Machine(s) this test fails on:
 
 Any other details: