[goto] fix error reporting issue

Fixes #1078

src/lnav_commands.cc

@@ -482,9 +482,10 @@ com_goto(exec_context& ec, std::string cmdline, std::vector<std::string>& args)
                     auto attr_guard
                         = alb.with_attr(VC_ROLE.value(role_t::VCR_COMMENT));
 
-                    alb.append("^").append(unmatched_size - 2, '-');
+                    alb.append("^");
                     if (unmatched_size > 1) {
-                        alb.append("^");
+                        alb.append(unmatched_size - 2, '-')
+                            .append("^");
                     }
                     alb.append(" unrecognized input");
                 }

test/expected/expected.am

@@ -36,6 +36,8 @@ EXPECTED_FILES = \
     $(srcdir)/%reldir%/test_cmds.sh_1e1c8492b295913ce5afcd104cde0ec4ca1dcdac.out \
     $(srcdir)/%reldir%/test_cmds.sh_1f53f5b16c7c5aa695ed2e6427d822a1b940fcf4.err \
     $(srcdir)/%reldir%/test_cmds.sh_1f53f5b16c7c5aa695ed2e6427d822a1b940fcf4.out \
+    $(srcdir)/%reldir%/test_cmds.sh_2186d5eb6e84d6a23712334d5088c044fe089db0.err \
+    $(srcdir)/%reldir%/test_cmds.sh_2186d5eb6e84d6a23712334d5088c044fe089db0.out \
     $(srcdir)/%reldir%/test_cmds.sh_22577861cb0921a7e7f3d1af6485938f4930ba7b.err \
     $(srcdir)/%reldir%/test_cmds.sh_22577861cb0921a7e7f3d1af6485938f4930ba7b.out \
     $(srcdir)/%reldir%/test_cmds.sh_2339d09953b6937981d8a448000c3fdc2837f8c4.err \

test/expected/test_cmds.sh_2186d5eb6e84d6a23712334d5088c044fe089db0.err

@@ -0,0 +1,7 @@
+✘ error: invalid timestamp: 17:00:01.
+ reason: the leading part of the timestamp was matched, however, the trailing text “.” was not
+ --> command-option:1
+ | :goto 17:00:01.                         
+ |               ^ unrecognized input      
+ = note: input matched time format “%H:%M:%S”
+ = help: fix the timestamp or remove the trailing text

test/test_cmds.sh

@@ -185,6 +185,10 @@ run_cap_test ${lnav_test} -n \
     -c ':goto 2022-06-16Tabc' \
     ${test_dir}/logfile_access_log.0
 
+run_cap_test ${lnav_test} -n \
+    -c ':goto 17:00:01.' \
+    ${test_dir}/logfile_access_log.0
+
 run_cap_test ${lnav_test} -n \
     -c ":goto 1" \
     ${test_dir}/logfile_access_log.0