partition_manifest: error log whole manifest file path

when an error log happens, instead of _ntp log the whole cloud storage
object key, so it's easier to manually retrieve the file

(cherry picked from commit 141192f)

src/v/cloud_storage/partition_manifest.cc

@@ -649,7 +649,7 @@ void partition_manifest::set_archive_clean_offset(
           "{} Requested to advance archive_clean_offset to {} which is greater "
           "than the current archive_start_offset {}. The offset won't be "
           "changed. Archive size won't be changed by {} bytes.",
-          _ntp,
+          get_manifest_path(),
           start_rp_offset,
           _archive_start_offset,
           size_bytes);
@@ -673,7 +673,7 @@ void partition_manifest::set_archive_clean_offset(
               "{} archive clean offset moved to {} but the archive size can't "
               "be updated because current size {} is smaller than the update "
               "{}. This needs to be reported and investigated.",
-              _ntp,
+              get_manifest_path(),
               _archive_clean_offset,
               _archive_size_bytes,
               size_bytes);
@@ -789,7 +789,7 @@ bool partition_manifest::advance_start_offset(model::offset new_start_offset) {
               cst_log.error,
               "Previous start offset is not within segment in "
               "manifest for {}: previous_start_offset={}",
-              _ntp,
+              get_manifest_path(),
               previous_start_offset);
             previous_head_segment = _segments.begin();
         }
@@ -1061,7 +1061,7 @@ size_t partition_manifest::safe_segment_meta_to_add(
                   "[{}] New segment does not line up with last offset of empty "
                   "log: "
                   "last_offset: {}, new_segment: {}",
-                  _ntp,
+                  get_manifest_path(),
                   subst.last_offset,
                   m);
                 break;
@@ -1106,7 +1106,7 @@ size_t partition_manifest::safe_segment_meta_to_add(
                       cst_log.error,
                       "[{}] New segment does not line up with previous "
                       "segment: {}",
-                      _ntp,
+                      get_manifest_path(),
                       format_seg_meta_anomalies(anomalies));
                     break;
                 }
@@ -1132,7 +1132,7 @@ size_t partition_manifest::safe_segment_meta_to_add(
                           "[{}] New replacement segment does not line up with "
                           "previous "
                           "segment: {}",
-                          _ntp,
+                          get_manifest_path(),
                           format_seg_meta_anomalies(anomalies));
                         break;
                     }
@@ -1147,7 +1147,7 @@ size_t partition_manifest::safe_segment_meta_to_add(
                           "[{}] New replacement segment has the same size as "
                           "replaced "
                           "segment: new_segment: {}, replaced_segment: {}",
-                          _ntp,
+                          get_manifest_path(),
                           m,
                           *it);
                         break;
@@ -1177,7 +1177,7 @@ size_t partition_manifest::safe_segment_meta_to_add(
                       "committed "
                       "offset of "
                       "any previous segment: new_segment: {}",
-                      _ntp,
+                      get_manifest_path(),
                       m);
                     break;
                 }
@@ -1292,9 +1292,9 @@ void partition_manifest::spillover(const segment_meta& spillover_meta) {
     if (expected_meta != spillover_meta) {
         vlog(
           cst_log.error,
-          "{} Expected spillover metadata {} doesn't match actual spillover "
+          "[{}] Expected spillover metadata {} doesn't match actual spillover "
           "metadata {}",
-          _ntp,
+          get_manifest_path(),
           expected_meta,
           spillover_meta);
     } else {