Fix memory leaks found by valgrind in the paranoia script.

src/spicelib/devices/bsim4v5/b4v5mpar.c

@@ -103,6 +103,8 @@ GENmodel *inMod)
             break;
 
         case  BSIM4v5_MOD_VERSION :
+            if (mod->BSIM4v5version)
+                free(mod->BSIM4v5version);
             mod->BSIM4v5version = value->sValue;
             mod->BSIM4v5versionGiven = TRUE;
             break;

src/spicelib/devices/vsrc/vsrcask.c

@@ -87,6 +87,7 @@ VSRCask(CKTcircuit *ckt, GENinstance *inst, int which, IFvalue *value, IFvalue *
             return (OK);
         case VSRC_CURRENT:
             if (ckt->CKTcurrentAnalysis & DOING_AC) {
+                FREE(errMsg);
                 errMsg = TMALLOC(char, strlen(msg) + 1);
                 errRtn = "VSRCask";
                 strcpy(errMsg,msg);
@@ -100,6 +101,7 @@ VSRCask(CKTcircuit *ckt, GENinstance *inst, int which, IFvalue *value, IFvalue *
             return(OK);
         case VSRC_POWER:
             if (ckt->CKTcurrentAnalysis & DOING_AC) {
+                FREE(errMsg);
                 errMsg = TMALLOC(char, strlen(msg) + 1);
                 errRtn = "VSRCask";
                 strcpy(errMsg,msg);