Ust: Fix SonarCloud Regex HotSpots flag

Fix SonarCloud Regex related to [1]'s HotSpots issue.

[1]https://sonarcloud.io/organizations/eclipse/rules?open=java%3AS5852&rule_key=java%3AS5852

Change-Id: I9b2b8c36d4af6336e036f1d35a0dbe71e745ea2a
Signed-off-by: Estelle Foisy <estelle.foisy@ericsson.com>
Reviewed-on: https://git.eclipse.org/r/c/tracecompass/org.eclipse.tracecompass/+/201498
Tested-by: Trace Compass Bot <tracecompass-bot@eclipse.org>
Tested-by: Matthew Khouzam <matthew.khouzam@ericsson.com>
Reviewed-by: Matthew Khouzam <matthew.khouzam@ericsson.com>
Reviewed-by: Marco Miller <marco.miller@ericsson.com>

lttng/org.eclipse.tracecompass.lttng2.ust.core/src/org/eclipse/tracecompass/internal/lttng2/ust/core/analysis/debuginfo/UstDebugInfoStateProvider.java

@@ -132,7 +132,7 @@ public class UstDebugInfoStateProvider extends AbstractTmfStateProvider {
      *
      * <value> <type> <name> <source>:<line>
      */
-    private static final Pattern fNmPattern = Pattern.compile("(\\w+)(\\s+)(\\w)(\\s+)([^\\t]*)(\\t*)([^\\:]*)(:*)(.*)"); //$NON-NLS-1$
+    private static final Pattern fNmPattern = Pattern.compile("(\\w+)(\\s+)(\\w)(\\s{1,})([^\\t]*)(\\t*)([^\\:]*)(:*)(.*)"); //$NON-NLS-1$
 
     private final LttngUst28EventLayout fLayout;
     private final Map<String, Integer> fEventNames;