style(config): lightly flatten the loops of load_config

Mostly changing things like if { ... return} else { ... } to not have
an extra indentation level of the else part.

The diff is probably very weird even with stripped whitespace.

epicardium/modules/config.c

@@ -293,7 +293,8 @@ void load_config(void)
 				*eol = '\0';
 				doline(line, eol, lineNumber);
 				line = eol + 1;
-			} else {
+				continue;
+			}
 			if (line == buf) {
 				//line did not fit into buf
 				LOG_WARN(
@@ -302,7 +303,7 @@ void load_config(void)
 					lineNumber
 				);
 				return;
-				} else {
+			}
 			int seek_back = last_eol - nread;
 			LOG_DEBUG(
 				"card10.cfg",
@@ -312,7 +313,9 @@ void load_config(void)
 				seek_back
 			);
 			assert(seek_back <= 0);
-					if (seek_back) {
+			if (!seek_back) {
+				break;
+			}
 			int rc = epic_file_seek(
 				fd,
 				seek_back,
@@ -338,11 +341,8 @@ void load_config(void)
 				);
 				return;
 			}
-					}
 			break;
 		}
-			}
-		}
 	} while (nread == sizeof(buf));
 	epic_file_close(fd);
 }