Fix incorrect variable name

package_alerts/package_alerts

@@ -128,7 +128,7 @@ def call_api(token, url, params=None, stream=False):
 
 def get_upstream(token, feed):
     """retrieve full list of packages from a cset"""
-    arch = re.match(r"(\w+-[0-9]-\w+-)(\w+)(-\w+-\w+)", line).group(2)
+    arch = re.match(r"(\w+-[0-9]-\w+-)(\w+)(-\w+-\w+)", feed).group(2)
     url = (
         f"https://api.access.redhat.com/management/v1/packages/cset/{feed}/arch/{arch}"
     )
@@ -174,7 +174,7 @@ def format_release(p, f, token):
     """format message and send payload to mattermost"""
     newpackage = p.split(',')[0]
     checksum = p.split(',')[1]
-    logfile.write("\n" + newpackage)
+    logfile.write(f"{newpackage}\n")
     # check for epoch in name, and if it exists: ignore it
     try:
         name = (
@@ -202,7 +202,7 @@ def format_release(p, f, token):
             notes = None
 
         cl = get_changelog(token, checksum)
-        values = {}  
+        values = {}
         # Using Mattermost attachments for prettier messages
         # https://developers.mattermost.com/integrate/admin-guide/admin-message-attachments/
         values["pretext"] = f"@all new package released in {f}: **{newpackage}**"