style: avoid trailing whitespace in changelog

CHANGELOG.md

@@ -100,7 +100,6 @@
 
 * tests: reduce test time by specifying explicit path ([`60fb0d0`](https://github.com/kmnhan/erlabpy/commit/60fb0d0cedd9f0aaeca7101dddf0848f8872ccc3))
 
-
   This will not trigger directory recursion, so tests will run a bit faster
 
 * tests: add tests for fitting functions ([`4992251`](https://github.com/kmnhan/erlabpy/commit/499225149346e970d00b60dcb5ca39af5e5ddb47))
@@ -235,7 +234,6 @@
 
 * [pre-commit.ci] auto fixes from pre-commit.com hooks ([`b86c995`](https://github.com/kmnhan/erlabpy/commit/b86c9952be94b4b7f5e5918ed28cbf39b750ef09))
 
-
   for more information, see https://pre-commit.ci
 
 

templates/.macros.j2

@@ -1,15 +1,15 @@
 {% macro render_single_commit(commit) -%}
 * {% if commit["scope"] is not none %}**{{ commit["scope"] }}** {% endif %}{{ commit["descriptions"][0].rstrip() }} ([`{{commit.short_hash }}`]({{ commit.hexsha | commit_hash_url }}))
-{% for line in commit["descriptions"][1:] %}
-{{ line | indent(2, first=True, blank=True) -}}
-{% endfor %}
+{% for line in commit["descriptions"][1:] %}{% if line | trim != "" %}
+{{ line.strip() | indent(2, first=True, blank=True) -}}
+{% endif %}{% endfor %}
 {%- endmacro %}
 
 {% macro render_unknown_commit(commit) -%}
 * {{ commit.message.rstrip().split("\n")[0] }} ([`{{ commit.short_hash }}`]({{ commit.hexsha | commit_hash_url }}))
-{% for line in commit.message.rstrip().split("\n")[1:] %}
-{{ line | indent(2, first=True, blank=True) -}}
-{% endfor %}
+{% for line in commit.message.rstrip().split("\n")[1:] %}{% if line | trim != "" %}
+{{ line.strip() | indent(2, first=True, blank=True) -}}
+{% endif %}{% endfor %}
 {%- endmacro %}
 
 {%- macro render_elements(elements) -%}